You most definitely need to move the engine back against the transmission...
This should not be as difficult as you're making it... You've gotta learn somehow but generally people suggesting you learn from their mistakes are suggesting it because, well, they've already made the same mistake.
I've worked in small garages before. Roll the car back a couple feet, pull engine and tranny in all of 30 minutes, lower engine and tranny so that tranny's resting on a tire or rolling stand, detach engine from tranny, put engine on engine stand, move hoist and tranny out of the garage, roll car back in in time for lunch.
Anyway, yes, move the engine back, pull the fork, slide the engine forward as straight as possible while the transmission is still attached; The input shaft is pretty beefy but it's always best to proceed with caution. Absolutely disconnect the driveshaft.
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