Mark,
I would really think hard before pulling the trigger on the 73. I have been dabbling in the second gens for a year or so, and for some reason (HP rating change?) the 73's seem to bring way lower dollars than the others. 70's bring in the most, 71-72's next and 73's are much less desired on resale. For that price, you should be able to find a 72 easily. For 25-30ish, you can find a 70 or 71 Z.
Now, conversely, if you are looking for a "I'll keep it forever" sort of thing, the 73 would be the way to go, it would be much less than the others.
I know some don't agree, but with prices the way they are, wait for the right car! Unless it is a COPO type car, the deals seem to be out there.
In fact, they just had a 69 Camaro L78, project yes, but a running driving project, sell for 27.5! That would have been a deal (IMHO)!
Like others have said, start with what YOU want, then look for something in that range. Post here when you figure it out, and knowing the guys here, someone will probably point you in the right direction.
Just beware of guys selling LM1's unless they are certified
