A lot of the ground pounding issues with these engines is the horrible job of balancing that India preforms and when tied down on a piece of concrete the issues noted appear. Secondary issue is just how sensitive people are to it. At this moment there is a 1115 sitting on a yard of concrete and running  about100 feet from my chair and the only way anyone knows it is powering the house is the slight flicker from the big single cylinder diesel. A CS Lister or a properly balanced 'roid does not pound the earth when setting on a
 block of concrete and it will set reasonably still when sitting on nothing more than couple 4x6s sitting on the ground. I'm not a fan of letting an out of balance engine rattle around on a set of vibration dampeners because parts and pieces then vibrate loose.  One of my shop customers has a CS 6/1 running behind the house to pump water and it's set a little  under 600 RPM, exhaust runs into a pit silencer and is exhaust maybe 20 feet in the air. Aside of hearing the slight pop pop from the pipe there is no evidence of an engine running, no ground pounding whatsoever. So,, there is obviously more than one way to skin this cat but statements that point to they will all pound the ground if set on a concrete base are not quite factual. 

I have several Chinese horizontals and a couple Petteroids for sale cheap,, REAL cheap if you take them all.
1-G&G Petteroid/new
1-G&G Mini Petteroid/new
1- Changfa R-192/new
1- Changfa R-170 used
1- R-165 used
Please PM for more information and deals. If you have ANY interest in engines like these the prices will be very attractive.
Location is Central Ohio

First off you have an India Listeroid, not a Lister. Very important differance for advertising clarity, pricing and market.  I have no good news for selling the India made engines. Years of very poor quality engines along with several other factors have caused the market for them to crash and in some cases completely dissappear. The modifications do not enhance the value. For a quick sale you must be under $1,000, how far under is hard to say. The last one I had for sale did not get a response at $1,000 and finally sold at $600. If you don't mind sitting on it forever ask $1500 or so and you may get it.  There is still an extremely small amount of interest in Listeroids but those who have interest seem to want to buy a new ones.

When I poured the base for my 1115 Changfa generator I tacked together an angle iron framework with the required holes in the correct place and large enough to set on top of the forms with spacers so I could get a trowel under it. That being said modern type anchors work very well. Which ever you choose everything stays tight better of you shim the base up off the concrete a bit and grout it.
 Mine sits a foot over the floor and I wish that I'd made it higher for my old back when performing maintance.

Yes, the fit needs to be checked once pressed in. I could not find the spec in my literature but the specs for  pin fit are very close. With no numbers to go on the fit is by feel. The pin should slide in the bushing with finger pressure  with no dicernible slop. This is hone work, not reamers.

Take your new bearings to a machine shop and tell them you want a driver machined that is .010" smaller than the O.D. of the bearing and pilots it it's bore.  You also should have an installer that pilots on the bore and has  flange to match the bearing thrust surface.
Or, you can drive the old ones out with a punch and hope you don't ding the housings and then smack them back in with a hammer and block of wood and hope you don't screw up your new bearings. 
Sometimes the bearings are very tight in the housings and sometimes not.

The Bamfords deal started out with one I bought in pieces at George Helmuths auction 15-20 years ago. We made every part needed to put it back in running condition and take it to a few engine shows where the Amish found out about my operation and started sending me work. After a few went through the shop making all those parts by hand got old so I had many of them reproduced.  Now I have the great bulk of all known Bamfords Z series parts on my shelves. The casting quality and machine work is excellent and believe it or not overall they are much heavier construction than a CS Lister.

Model P 1921-22 not thick on the ground anywhere and none here in the states that I know of