Need some help in making a selection. I've read on some posts to use 01-03 ford aerostar dual fans which I can get new from rock auto for $85.00, or 06 silverado dual fans, which are a bit more expensive. What to do? Which is better,or easier to hook up? Or is there a better way to go. I'm all ears.My swap is a 1990 gmc 1500 with a new stock size rad. I have a nelson harness, but no fan harness which I think I'll need to get from them. Any help,as always is greatly appreciated. Thanks.