Keg Flange Stainless Vs Copper

[Florida_Man]

I have been out of the hobby for a little while now. I wanted to upgrade to a better still before continuing (if you look at my first still in my posts you will see why). I decided to wait and build a keg still. Finally found a used and legal keg. I have a Anheuser Busch keg. When looking at all the posts about flanges, I decided I don't want to make my own flange for two reasons. First, I want a real good seal. Second, I think I would ruin the pipe making the easy flange. What I am left with is buying a flange. Copper flanges seem nice but are a lot more expensive than stainless. Would buying a stainless flange and soldering it to the copper column do the same job as using a coper flange? If it is more of a hassle to use stainless, I do not mind using copper. I plan for my column to be two inches.