the parts support will be pretty good all the major online shops currently carry OCM parts,they are right at the top in both quality and speed, with the major players in R/C.
thay are priced realitivly cheap they are around the 375 to 425 range, im not exact on the price however im basing this off the buggy price on a-main.
There is a PRO ARR that is pre built (simmular to what Associated is doing with the Rc8), just add oils and go.