I used the standard cooling fan mounting kit. 4 plastic rods with foam on mounting surface, going through radiator fins, then through the holes on the fan shroud i drilled. The weight of the fan is resting on the bottom tabs of radiator. This keeps weight off the radiator fins/rows. just some pulling force to keep the fan upright. I would only do this if you use some hose on the fan shroud.
edit: I get to tow a S10 Blazer tonight on a car dolly. Only about 25 miles, but that will work the cooling system. I believe its 92 today. And then tomorrow we get to drop a tank full of gas to replace a fuel pump. I get to mostly instruct my brother in law. "no lifting over 10lbs for six weeks after surgery" per my DR.