67 barracuda front frame rail rot. any suggestions???

Removal depends on what is going to be saved.

If you are saving the inner, then use a spot weld cutter along those edges.

Where the frame attaches to floor pan and torsion crossmember, I'd use a grinder to cut the rail away and grind flush. AIr chisel on the crossmember attachment. Much faster than getting the floor pan spots out with a cutter. The ones on the x member are a bear sometimes with a cutter, especially with all the stuff in your way.

I might also have a frame rail available for your car as well.

4404spd, nice work on the front clip!