Thoughts on LS swap

[the ideaman]

I've started gathering parts for my swap into my 67. It already has a TKO500, 3.73 posi and presently has a 327. So far the plan is either a 480 or 525 horse 6.2 with a Holley alternator, PS, and a/c compressor. I'll use the gm controller and pedal. Going with a Boyd's tank, entropy radiator and possibly a hydraulic clutch setup. A hydraulic throw out bearing seems like a good setup.
My questions are...
Can I use the original bell housing? Is the 525 horse engine worth the money? What's the difference besides 45 horsepower? A hydraulic ram setup, a hydraulic throw out bearing or the original z bar setup? Pics of your setup? Thanks, guys.