From everything Iíve found there are only three choices for the Edge these days. In the midline is Fabtech and Doetsch. On the premium side thereís Camburg.
Procomp used to offer a set but from what Iíve heard they have discontinued their line for the Edge.
The Fabtech and Doetsch spindles can be purchased separately, but you need to ensure your wheels have no more than 3.75 inches of back spacing for the Fabtech spindles whereas the Doetsch spindles will work with stock wheels. Both will require some grinding on the lower control arms and a little more for the Doetsch to fine tune the steering stops.
Hereís some links:
Suspensionmax price for the spindles Part# 703230 Front 3" Lift Spindle for 99-05 Edge $326.95 (which are the Doetsch spindles) 4WheelParts has them for about $375.00. The Fabtech spindles will run about the same maybe a little more.
Truckaddons shows they still stock the Procomp Spindle kits with AAL and shocks but I would call first to see if they can still get them. their price for the kit is $840.95
Camburg sells a nice setup but is rather pricey. They start at $1550 for the parts and go up from there.