Welding Tips and Tricks

Hey guys, new to the forum. Have been an aluminum welder and fitter for 17 years. Grew up working in my dads boat building shop and i found a new direction I want to head and that is set up my truck as a mobile welding unit. Looking for other members on here to see what setup you have. Im planning on buying either a Miller 350P aluminum mig welder or the new 350mpa alumapro. Looking for a power source that will work good for these welders. I will be welding mostly aluminum but will also be setup for welding steel and stainless.

Just looking for info on what you guys have for a setup. Thanks !