I have a rc18t that is upgraded with carbon chassis lots of alloy parts and a castle creations 4100kv brushless system and the original radio gear that came with it. For the right price I would sell it.
Have a look at this https://www.ebay.co.uk/itm/Team-Associated-Rc18R-Full-Exotek-Upgtade-with-Set-Up-Tools/193326899236?hash=item2d032e6024%3Ag%3AlXsAAOSwh-JeNK9q&LH_ItemCondition=4
Yep I still have my rc18b and rc18t and use them as well. I also have a box full of wheels tyres as well as several chassis and a huge amount of spare parts both standard and alloy parts so should keep me going for a lot of years.😁