These fans cool really well and are the ones I'm going to use. They run anywhere from $70 to $150. The crack doesn't look very bad could be repaired. You will need a wireing harness of some kind and some relays. The measurments for the camero fans are 28" x 18" x5" so should fit a bunch of apps.
2006 Superior Blue Trailblazer SS AWD, Stock as a rock
Sold: 2002 GMC Sportside Denali front end with a 2002 LS1, FLT level 5, Yank 2600, Trick Turbo, T76, Nelson intercooler, 60LB injectors, Warbro fuel pump, Eaton locker, Magnaflow, 3.42, Nelson Performance Tuning (speed density).
Sold: 1981 GMC LB RC 1500 2002 4.8L 4L60E 12 bolt 3.73 Richmond Lock Right AC PS Nelson Performance tuning