I'm geting a R1 pro thats been fried for $20

[BrianG]

Well, if you can figure out which FET to buy, sucessfully solder a surface mount device without bridging any terminals, and that is the ONLY thing that is wrong, you could have it done pretty cheaply. First thing is to figure out the part number and go from there...

Personally, I'd see about getting it fixed from Tekin. Might possibly be more than fixing it yourslef, but may be cheaper in the long run if more than one component is bad...