You can 'rent' tools from Autozone. What you do is buy one, then return it. If they have a 1/2" impact and you have an air compressor worthy of such a job, go get one.
Chances are (if you have enough CFM and a decent impact) you wont need a breaker bar, the flywheel holder, or your friend.
Just find a decent work glove to hold the clutch basket with and zip that nut off.
I am in the tear-down process of a 98 CR250 right now, and the nut came off in one blast of air no problemo.
Loctite will not be an issue, and forget about using a torch, you wont need it.
You should have that nut off and the pushrod in your hand tonight.
Also - I have one of those clutch holder tools as well. I still have yet to use it or need it.