You can find them at the various online sellers for less than $500, maybe cheaper on eBay. ProgRama may sell rebuilt units. The change-out is simple and there are several posts on how to do it.

If the fuse is blowing, there is a good chance that the pump motor is fried. That's what happened to mine, and I fixed it with a motor from a used pump unit that I bought for $25 from a local shop. The units often get replaced because of the valves or the control module, so the trick is to find one with a good motor.

So ask around and maybe you can find someone to sell you one.

Replacing the motor is fairly easy.

__________________
Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe