I am not sure that you will be happy with a 4L65E for that rig. If you are gonna mod that 6.0 at all, or have big ol tires on the other end, that 65 won't last long. If you haven't spent the coin on a trans yet, do yourself a favor and step up to a 4L80E and don't look back
Looking forward to the pics of the metal-work. Mine is about ready for some plasma/welder love.
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1972 2wd K/5 Blazer Turbocharged 370 LSx - 941 rwhp / 1093 rwtq
1969 Chevy K-10 L33 5.3 / 4L80E / NP241 / 4" lift
1964 Buick Skylark Twin TURBO 383 LS pro-touring project
2014 VW Passat TDI - Daily Driver
Turbo diesel
2015 Sierra Denali HD Duramax Turbo diesel
2016 Ford Explorer Sport - Twin Turbskis
2017 Polaris RZR Turbo
2014 Nor-Tech Center Console - Twin Supercharged Outboards
TURBO ALL THE THINGS!!