Guns and Other stuff in Vacaville does that too. You can pay as little as half, or at least $200, then pay off the rest in-between that and the pick up day, or the rest on pick up.
I like them in Vacaville, Ive also bought stuff in Martinez, theyre kind of dicks, but if you don't act like a punk ass kid they'll help you with everything...
As a matter of fact I took my HSC test there and the guy gave me the answers to the most missed questions, lol. I didn't need the help, but it was cook of him.