Check with autozone and see if they have the pulley wrench and clutch disc remover tools available to rent/borrow. If you can get your hands on those two tools, you should be able to just swap out your clutch and pulley for a used one (will be hit and miss, sure, but if my Max still has a good clutch and bearing after 16 years, plenty of 9 year old Maxes should, too).Check pages 11 and 115 here for more info on those tools and what's involved in swapping the parts.
A quick check of Autozone's website shows they do carry both those parts (and the pulley puller, too) but they list them as Ford compatible. I'd head into a store and see if they have Nissan versions available. Renting them will cost you money up front, but you'll get it back when you return them.
If you just swap the bad parts, you won't have to mess with breaching the coolant system or any of that stuff.
-The MinisterofDOOM 
|The Q of DOOM| - |The Maxima| - | Hear my Q!|
4.08 VLSD, NICO 8-way ECU, full exhaust with custom headers,
Tokico Blues with Eibach springs, Stillen FSTB, 20mm RSB
