ESR 310 on Ebay

[450madman]

Is the $600 buy it now price a good deal for this used ESR 310 top end with the extra domes? I priced it out at over $1000 new for all the parts on ESR's website.

[450madman]

http://www.ebay.com/itm/ESR-310-Honda-trx-250R-top-end-cylinder-jug-piston-head-/181172016574?pt=Motors_ATV_Parts_Accessories&hash=item2a2eb195be&vxp=mtr