I was poking around on my lunch and see I can buy a 6 post valve which would give me in from both tanks, out to sniper, return from sniper, and out to both tanks. All will go through electric HP fuel pump.
Then all I need is the in cab switch which would be the 70's 80s style GM.
I realized needing a return is probably not going to work with a manual valve.
Here is the vlave.
https://www.amazon.com/dp/B0D7VP4K6...;sp_csd=d2lkZ2V0TmFtZT1zcF9ocXBfc2hhcmVk