Thank you for the replies!

May I also ask opinion on recommended setup? I need something
portable, and I am looking at the below setup for welding sheetmetal
to repair auto body/parts and would like to build a aluminum bicycle
frame:

Miller Dynasty 200DX

Miller Contractor Kit
Protective Case with carrying handle, DB1725R (25 ft) TIG torch,
RFCS-14 HD foot control, International Style Torch Adapters,
Regulator/Flowmeter, 200A Electrode Holder with 15 ft cable, 300A Work
Clamp with 15 ft cable, 12 ft Gas Hose, AK-2 Torch accessory kit, Gas
hose coupler.

40cu ft tank w/ Argon (Rent or buy???)

Tungsten electrodes

Tig welding gloves? I have thick gloves for arc welding... Also have
auto darkening helmet.

Thanks,

Luds