F4i flywheel removal
 

I need to change the flywheel from my old engine to my new one. It looks like I need a really big bolt to pull the flywheel off the crankshaft. The manual specifies a Honda tool, but I'm curious if I can just use a bolt and what the specs of this bolt are.

Anyone have an idea? OR Know a website where I can buy a puller for a decent price?

Thanks.