twin engine AWD car

I am interested in building a car with twin FWD drivetrains. I have seen the Mosler caddy, the Tibron in Sport Compact, and the A class. I need some opinions on what car to use. The focus will be on acceleration and the ability to drive around. I doesn't need to be a handling car. I am thinking Grand Prix GTP right now but my knowledge of front drive cars is limited. In my opinion modding a FWD car is a complete waste of time therefore I don't have the years of reading experience with them as I do others. Here are my requirements and initial thoughts but I will listen to differing opinions.
1. Must be auto. Manual linkages seems too difficult to implement.
2. Must be the car that came with the drivetrain. Only want to have to perform performance enhancements to the front drivetrain.
3. Rear drivetrain must be the same as front or at least before mods.
4. Must be a popular car for modding.
5. Must be a fairly common car or car that is easy to get parts for.
6. Don't want to spend more than about $10k for the first car. First car being the one that gets the second drivetrain.

1st gen mistsu/ eagle/ plymouth (all DSM)