I have a200DX running on over 100 ft of 10 ga cord plugged into a dryer outlet, and it will run at full power without issues.
Your welder is rated at 24A at full load. This is the number you should look at for sizing the wring, provided the inrush isn't extreme (30A in your case).
Unless you are trying to run 300ft or something crazy.
Measure the voltage at your supply, if it is 240V, it will be an even lower current requirement.
Everlast 200DX
Everlast PT185
Shoptask 3-in-1 (not currently in my garage, but I own it...)
Any day on a motorcycle like this that ends just needing parts and labor is a good day.
4.82, 158.67mph 1/8th mile 7.350, 200.35mph 1/4 mile