What fits, late to early front end parts to swap?

i would sell/trade the tabbed LCA's for some plain jane ones. then adapt the 73 bar as jim suggested-- the mounts shouldn't be that big of a deal and fabbing up some tabs wouldn't be the worst thing. this supposes that you have some room/tools for the fab and a little welding skill.

the easier direction would be to get the naked LCA's and an aftermarket bar that supplies the mounts and LCA tabs. hellwig and addco are two that come to mind right off hand. these mount to the lower shock bolt and don't require any fab work.