Ive never heard anything badabout the DF02, I love my DF01/TA01 and the DF02 is said to be better.
I cant comment on the 1/16 revos, but I can say the 1/16 ken block rally car is the worst handling unpredictable car ive ever driven and owned.
Personally I would get something 2nd hand, u should be able to get something really good for $300 2nd hand.
If u have to buy it new, Check out Thunder Tiger, people say they are good.
If it was me. I would get a Losi Mini 1/14 8ight
• Length: 11.49 in (292mm)
• Width: 8.03 in (204mm)
• Height: 4.33 in (110mm)
Even tho its 1/14, its really not that much smaller than the Tamiya DF02