Actually Chassis Shop does not regularly stock .120" wall 1.625" dia 4130. I've had a pc of that size on order from them for 6 months and they cant or wont supply. I went to Industrial Metal sales also a Michigan company who does have it in stock. Pricey but in stock (and I only needed 3 feet more.)
I have been a regular customer of Lane Automotive aka Motorstate Distrubiting for at least the past 18 years. They carry (in stock) lots of 4130 and DOM. I have an account and prices are quite good. (Very competetive) They ship country wide, but again they are a Michigan company. I prefer to do business with companies close to my home community when possible. Well, some suppliers have become personal friends, so they are close to MY community.
Everyone have fun at WOS, and above all be safe