Originally Posted by surebet
Well, think of it this way, right now you have a couple of BMWs you want to push up to Ferrari performance level. You want to get some practice in, so you're considering getting a Civic. Same basic principles apply, but if you pursue the project with the Civic you'll only end up with a riced up piece of crap that will cost you a lot of money.
Sure, it will go fast in a straight line, but none of the refinements will be there
I like your analogy but I think this is where it breaks down. Whereas a Civic will still likely at least function, the risk with going the cheap route here is that when upgrading or messing with a very very cheap or off-spec gun is that it might end up being DOA, even after a lot of work.