Well Rob.. I guess that link you blatantly posted yesterday isn't helping much, is it?
Anywhoo
cheapest Torque converters are on ebay (oh the obvious...)
sometimes as little as 85 bucks for a Tav kit (backplate and belt).
right now 105 I'm afraid...
cheaper than that will be difficult other than used.
And there is no 'fixed' source for used parts.. they show up on craigslist and such, but you'll have to look yourself.
Wheels.. "big"?
hmm, be more precise if you want us to help or suggest something...
'sid