Currently I have an 03 Raptor 660. Planning on selling it and getting a bike. A friend has an 01 WR 426 in great shape with a few mods (baja kit - plated, White bros pipe, triple clamps/bars/steering stabilizer, new plastics and a decompression cam). Is $4200 a good price? Thanks in advance for the advice. Looking forward to goining the Thumper World.