A lot has changed since the TC-3. Brushless and Lipo's have made Mod touring extremely fast and tunability and parts availability are a must.
The Losi is nearly extinct and not a lot of support, the do ok in VTA but I would not even consider it for Mod, and they known to be a little fragile.
Corrally, Again parts are an issue, consider also there are not even that many Team Corrally guys running it and only one I know of doing it in Mod regulary, and it looks like a struggle to keep it consistent.
Top Photon, well parts are not available every where but it was cutting edge design when released and designed by Cyrul, one of the top Mod guys in the country, so it would be a decent option.
Also might consider looking for a recent, T-3 or T4 X-ray, they are very calm to drive and durable and one of the more popular ones at most tracks, Also I'm a little partial to the Serpent, the 411 was very stable and the new Eryx has a lot of traction, although parts supply might be what you carry in your box.
And Chesapeake Rocks, GBHS Class of '89
RC America - X-Ray - ORCA - EA Motorsorts - Sanwa - Sweep Racing Tires - TQ Wire - ProOne Racing Tires -
LONG LIVE OPEN MODIFIED