Why not bling the TA06 out?
You could do a carbon conversion!
They definitely solve some of the stock chassis' shortcomings, that bottom-load battery for one. I'm pretty sure RSector will ship to you, and their conversion is $85 US. That's the cheapest-cost carbon conversion I know of.
Barring that, a trailer might be an interesting project. Kind of simplistic, but something to occupy your time. Then you'll want a truck to haul it with!