leather to some people is desirable, i was one it took 8 months to find a decent naples red valver with leather. Not too difficult to get hold of, its just being in the rite place at the right time but it is expensive.
Shouldnt worry personally bout car history lacking in places. Go with your gut feeling mate. Some valvers are armed to the teeth with full renault service history etc etc and then turn out to be right crappers. Mine on the other hand had none and turned out to be a minter, had it 9months and no probs yet. Some valvers are good ones some bad, go with your gut feeling mate.