Yeah, it's basically an HRT dose, but your ? is I think not testosterone but other AAS as low dose year long. Well, first you can look at side effects, like the 17a all pill form basically will cause liver values to be elevated. You may get away with Anavar, but maybe not. Dbol was claimed that just one 10mg pill was enough to completely replace a man testosterone. And if taken in the early morning you could, in theory, trick the body into thinking this is your natural hormone release which happens in the male body early in the morning. And Dbol blocks almost 60%~70% of cortisol, which is a big plus.
I think an injectable form would be your best bet, most don't like Deca because of the dreaded Deca Dick, unless your running test with it. Presser posted some great articles about Tren and Masteron, but again you need to add a little Test to help, although low doses will work. So maybe a little Tren, Masteron and Test. Ha ha. Great question though. I'd like to hear everyone's ideas. I've been looking at this angle also, been meaning to run an experiment like this to see what's the lowest , me, personally can get away with.