What I did is to get the DOM tubing first, and then had the bushings made. Reason why is because my tube was an oddball size. The bushings were worn so I had to have new bushings made anyways. It worked so great the steering is nice and tight.
You are kinda doing it in the reverse order from me.
You may have to buy 12” of DOM tubing from online metals but worth it for safety Imho
I did a quick search at online metals and it looks like they have some 7/8 OD carbon steel DOM tubing that is 7/8” OD and 3/4 ID
https://www.onlinemetals.com/en/buy...bon-steel-round-tube-a513-type-5-dom/pid/7771
And it’s like seven bucks a foot.
I’m not saying you should definitely use this particular tubing, but I just wanted to let you know that there are a lot of options out there
Good luck