I have the full front total control conversion on mine. Its got QA1 coilovers. I like them. This is a 351W car, with 400lb springs. The only thing I dont like about the total control kit is you need to drill out some spot welds and remove the factory spring seat at the top of the shock tower. The whole rest of the kit is bolt on. If it wasn't for that, I would be installing the kit on my other old mustangs.
Are the shocks you're looking at direct replacements for factory or do they require cutting on the car?