I put a Grant re-pop on my Warlock to replace the dog-chewed original. At a glance it looks correct but it is slightly larger maybe 1/2" in diameter and the grip is not really soft foam but fairly tough but flexable.
I bought a Tuff-Wheel from Year One for my 71 Cuda project and it seemed very acurate, it was expensive and had no discounts either. Really nice reproduction though...