Mounting a stock shroud on a Champion 22" radiator - 73 Duster

I can use some help with my setup. I am working on my 69 GTS and i am having clearance issues, I have 3" between radiator face to water pump face, same dimension to PSP. I' am running 5.9 magnum, 30 over that put out 461.3 hp, 477trq at the dyno. Since I have a 22" cold case I don't think any elect. fan combos will work . can anyone help me with info on a mechanical setup.