Re: not wanting to pay someone to do your swap, you might want to look and see what your time's worth.
Can anyone here estimate how many hours they spent performing an engine swap? Is it 50 hours? 100? 200?
If the time spent is nearly the same amount of time it would take you to earn the $$$ to pay a reputable shop to perform the swap, I think you'd be better off paying a shop, since you know they'll either do it right or fix the mistakes for free. And the shop will probably get your car finished quicker too.
That's just my take on it, I haven't performed any swaps, but I've seen a few go bad...