Delivery time for parts

[littlened]

Hi All,

Just wondered what the best cars were (1/10th off road) for being easy to get parts for?

I've got a lazer zx-5, and most parts are easy to get hold of, but there's a few parts like those inside the diff and a set of front (SP) wheels that are taking 3 weeks to get to me. I understand that shops have no stock and have to order them in themselves.

Just wondered if this was normal for most manufacturers?