Hi Angelo, I could only guess at the engine incl. pony weight (it can come out with the engine but you may need to remove the pony flywheel to get access to the top transmission to "bellhousing" bolts) but maybe 1500? Parts to replace - throwout bearing which is a bronze two-piece unit that you can get from John at General Gear along with the other clutch parts. If your spider linkage is loose, now's the time to swap out the pins and straps which are retained with split pins / cotter pins so you can renew all of those (if Tom helps, I know he'll replace all your cotter pins : ). While it's apart, inspect the transmission input bearing and seal. You can also put new cotter pins in the pony pinion adjuster screws and give it all a good lube

Listen Angelo, if I've told you once, I've told you a thousand times, I don't need new windows for a low, low monthly payment, and I'm not interested in a 90 minute presentation on real estate investment in Florida ; ) 
Apologies, I'll send you a better number. The house phone's a bit sketchy at the best of times