Rear Frame Repair

[67-KY-72]

Hi guys. I have a 70 c/10 swb. The frame is rusted out where the coil retainers connect to the frame in the rear. I'm thinking of doing a 2"x3" tube frame as a repair, and doing a shock mount across with coilovers, while building my own crossmembers and maybe tubular trailing arms. Not really looking to bag or slam it. I'm a mechanic by day and do welding/fab at night, so I thought it'd be a fun project. Curious as to if anyone has pics of a similar setup they've done?

Thanks.