Well I went ahead and got a Mini Z (and have built up a TT-02 as well). I'm waiting on all the upgrades allowed at the track I want to race (Park Lane) to arrive. I figure having both 1:28 and 1:10 will give me some flexibility for where and when to race.

I realized too late I didn't need a readyset with body since it makes more sense to run a Jomurema body and the bare chassis kit comes already with ball bearings. I had been interested in a Senna body but looking at it in person it seems way too fragile for racing.