Engine weights should be available from Lister documentation - I'd suggest that Peter Forbes (listerdiesel, both here & on the Stationary Engine Forum) might be your best source. We can guess heavy for some of the additional bits.
Location wise, yes, Liverpool is closer to me than it is to Lytham St Annes. I may be able to rent enough land where I used to be based to put a container down for loading; we would have access to a fork-lift at that site for no extra cost.
However, I'd like to point out I'm no expert at loading, securing, correct weight distribution, etc. etc. I might be able to find someone who is, but anyone who can offer me any clues as to what sort of person to look for, I'm all ears.
My availability for the next 2 weeks is completely fubar - I'm out of town thu-fri this week & all of next week. Things should be calmer after that.