Listening to what you have said, I would recommend the HL KV1. Decent runner with a lot of upgrade parts you can add as required. Taigen in my opinion are Heng Long Tanks modified for you. So you have to look at what you are getting and compare that to what you would spend buying a plastic Heng Long and adding what you want for metal upgrades.

If you go for the 2.4 ghz electronics in the Mato, HL or Taigen, be prepared to throw them away if want to battle or add sound. You will then have to decide and purchase what electronics you are going to need, If all you are looking for is a tank to run around, and don't care too much about battling or Sound then the stock electronics will work for you. I am working on an interface to add the Benedini to these factory 2.4 ghz offeriings if you want better sound, but it is not ready yet.