Personally, if there is enough racers in the class, go with the buggy. Few things that I like about buggies:
1. Tires cheaper
2. faster speeds with similar motor than you get with a truck
3. More nible
4. More challenging to drive
For these reasons, I am selling my truck and will be getting another buggy, either 2wd or 4wd.
As for touring, if you get a TC3, see if you can get one that has the BMI Chassis upgrade on it. Its still a very good car and parts are out there cheap. an X-Ray is also nice, best fit and finish I have seen.