I love the idea of these things. I think it should be a 2 cell class though, otherwise, why bother? You end up with a slightly lighter 1/8th scale buggy, great if you wanna run on a big track... but where I see this class being the best is on smaller 1/10th scale tracks that short course run on.
I ran my MBX6 on 2 cell with an HW 4700... Prolly the best driving e buggy I have ever wheeled. Even on SCT wheels and tires. It was a 6 minute car though. It would run 10 minutes to LVC, but after 6 it started to dump.
Anyway, run it on your short course wheels and tires for now. You will be surprised. I certainly was. I wasn't any different time wise between the buggy tires and the SCT tires. In fact, I may have been quicker on the SCT wheels and tires.