take the 2500 that you would pay the fella to put it in buy a engine crane decent trolly jack and some decent tools give it a go. take your time it will be worth it in the long run. you will have alot of experience with your car who cares if it takes a bit longer.
and search for answers if you get stuck. alot of these conversions have been done so there is heaps of info out there nothing like taking it for a drive after a big rebuild that you have done yourself
good luck mate