For a RTR buggy 2wd: Go AE B4RS. It will get you into the class. Eventually, you will replace the electronics however and make sure to get an aluminum hinge pin brace up front. Invest in some front arms as well. If Kyosho were to come out with a RTR RB5 I would contemplate that route as well. I do love my B4 though. If you are wanting 4wd RTR there are few good options. Kyosho ZX-5 ready set has some weak points. I don't think that the B44 has a RTR version. I know the RTR is tempting and easy, but a kit or roller that you can put quality electronics into is a better idea down the road.