thats about as cheap as a good kit can be. for a good but cheap engine check out the OS RG if you can find one. they are out of production but there are still some around, and its a great little motor for small tracks at only $100. a cheap servo for throtle is fine but dont cheap out on your steering servo, expect to spend around $100 for it. either of the buggy kits you mentioned are just as capable of a win as a high-dollar kit. good luck.