Bill Gruner & Pacific Front Hobbies are a recommended online vendor. Bill stock most of the items in his catalog. He is not like some other vendors who take your order & money then must turn around and place an order with the manufacturer/supplier in order to complete your order.
The main gripe against Bill is his email policy. Bill runs a one man shop and often does not reply to emails as promptly (or at all) as many would want him to. If you need to check on the availability of an item you should call Bill and speak with him. Like I said before, Bill is a one man shop and his phone may be busy when you call. Give him a few minutes and try back. Bill is a pleasant fellow to talk with. Call and he can tell you if an item is in stock, if not in stock he can give you an availability date.
Bill at PacFront is good folks and overall experience of dealing with him is a positive experience.