1 ton If you do go the sub frame route I'd suggest rebuilding the clip with new bushings, ball joints, shocks, etc. before you weld it all together. It is still cheaper than MII IFS and that way insures that alignment with clip & frame of the 1 ton will stay the same.

Opportunity is missed by most people because it is dressed in overalls and looks like work. - Thomas Edison
Things may come to those who wait...but only the things left by those who hustle."-Abraham Lincoln