Any modifiable Torque games, pay or free?

Hey all. I'm doing some performance analysis for Torque (it'll be really extensive), and I'm in
need of hard numbers. I'll actually be in need of hard numbers for a while, but that's not
the biggest issue here. But, to get real numbers, I'm in need of some people playing a game
on the Torque engine. And therein lies the problem: I have the engine and the demo, but I
need something people would be willing to play for a while (say an hour straight). I need
to be able to add in some code to:
- measure how much data's going over the pipe, ghosted or not
- record what players do, to analyze/model later
- measure different values within the engine, like amount of active geometry, textures, etc.
- and lots more as I figure out what's needed

I'm planning to use the built-in profiling where I can, but I need the ability to modify the
engine source.

Are there any games available that I can modify the source to? I'm afraid I could easily
need access to more than the scripting layer has. Also, it'll likely have to be modified
again later to let me run high-playercount simulations (10k-100k) on a supercomputer.

I'm hoping for something free (I can afford a few licenses to a game, (I can write them
off essentially as textbooks), but I don't think I can pay for each of the supercomputer's
CPUs). But, the supercomputer simulation isn't until much later, so I can stall on that
for a while.

Thanks in advance!