I would start out at 50mg 2x/week. You will want to use an slin pin for this so you don't lose too much on each inject. I would recommend a 29g 1/2" inject SubQ or IM (use a spot where you have very thin skin, quads work well.
When you get your testosterone tested again, make sure it is 2-4 days post inject. Get your estradiol checked also next time you go in, if you don't see E2 in the normal range, ask your doc for a VERY low dose AI, probably .25mg arimidex 2-3 times per week, anything more than that is overkill.
Over time, your natural test production will shut down completely, this means you might need to slightly increase your dose over time, but not by much. Maybe 60mg 2x/week.
At some point you should add HCG into your regimen. I would recommend 200iu once or twice per week, probably the day before your test injects.
Remember, convenience and compliance is an important factor, if you don't like doing biweekly injects, there is nothing wrong with just doing one per week, however I am just outlining what I think would be optimal from my own experience and research.