made 2 of the 3 pockets. For the supercharger pulley clearance i wanted to keep in tack as much of the cross member as possible. Still need to do some finish grinding and make the alternator pocket but all in all i'm happy with it.
I am doing the same swap in my 69 with the Speedtech sub. Do you have better pictures of what you did to get the Dirty Dingo Low Mount AC to fit? I have had the modified LSA FEAD on order since last Sept and I hope it won't require any clearancing on drivers side since it swaps the PS pump with the alternator location.
These are the best pictures of the interference I have. you can see there are 2 spots that come really close to the frame. It was so close that i could just barely slip on the belt onto the pulley. You can see the blue outline. I cut the 2 lines (one not shown in front of the pulley) going to the bottom of the frame and cut along the bottom just above the welds. I then used a hammer and punch to evenly move the metal back to make a pocket. I then welded it all up and ground everything smooth. I just looks like a soft pocket with smooth transitions. I'll take better pictures when i do the alternator side tomorrow. I think there may have been just enough room on the alternator side but since I got a good process i'll just make it to match the A/C side.
I also started on my trans cover. It was backed up from a few different trans I had on there. I needed to make the speed tech one longer to cover the hole I had.
Still need to work on fitment but here is how it well live in the car