I've purchased a lot of software from KVR over the years and every single one has been a positive experience, but that's not to say some Juan won't rip another Juan off. Bill, I'd check the feedback thread at KVR's marketplace and see if this seller has good feedback.
Generally, (regarding pricing), I've noticed that most sellers don't go much lower than 50% AND also if a seller is asking too much, someone else will reply on that thread that there's a cheaper deal online with a link........so, selling this for $35 (IMO) looks a bit fishy..........of course, if you know the seller, then it would be different.