Just got off the phone with cummins, over the last week they phased out the old lift pumps, and now they only carry one, it comes with the old style/new style conversion harness and was quoted to me at

$171.18

I dealt with Kevin @ Cummins Great Plains, Inc.
7820 42ND STREET WEST
ROCK ISLAND IL, 61204
(309) 787-4300

Part number is 3990082 and as of right now they have 7 in stock.

 

I just got a new one for $120 shipped to my door. You just have to make some minor wiring changes to accomodate the + and - posts on the bottom of the lp instead of some fancy plastic connector.