I missed your budget. But I would go with a big blue 400 miller. Diesel welder. I have 3 welders and most of my work at my shop is outdoors so I use this machine. It is a 3 phase welder and it will do better than a ranger style welder and it can handle 100' + leads to get work that is further away running large rods. I have a lincoln wire feed box that can hook to it but I mostly use 7018 rods.
Before Covid you could get a nice used unit for about $6000.00 Now I am not sure of the going price.
I also have a precision tig with a water cooled torch by lincoln. I am planning to build my BAJA race buggy frame with it. LOL. maybe in my next life.
Find many great new & used options and get the best deals for 2012 Miller Big Blue 400D Welder/Generator at the best online prices at eBay! Free shipping for many products!
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If your pockets are fat then get a new one
Miller Big Blue 400 Pro Engine Driv Welder Generator (Kubota) Multiproses 907732. Heavy-Duty Low-Speed Kubota V1505 Industrial Diesel Engine. A smoother more consistent arc that can be tailored to match application, material, fit-up, and welder technique.
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The fuel economy is half of what any gas welder is. Best welder I have ever used for field work.