Will Castle Creations do a free repair/replace on an ORIGINAL MMM?

[montyjcm]

Kinda piggy-backing onto this thread, but my question is pretty close..

So, I just picked up a pretty good deal on a buggy roller with an MMM and medusa motor on ebay. I was a bit eager in bidding, and I overlooked the "V1" which I should have noticed. It's in working order now, but is it advisable to have castle replace it with a v3? Will they even do that if I don't have the original receipt? Thanks