I'm not sure taking anastrozole or 4-AD would keep your natural T from being suppressed. I remember reading the article way back, but I don't recall what exactly it said, though it seemed to make sense then. But running <200mg/wk, even in addition to an AI and a PH, doesn't seem to be enough to elicit appreciable gains. I'd bump up the test.
If you're not looking to get too big too fast I would suggest a modest cycle using the sust you have. Something like 500mg, two amps per week, would be good. If you have a multi-use vial you can always do something less, say around 400mg/wk, to be more conservative with the gains. You likely aren't going to blow up on 400-500mg of test.
After the cycle just run your typical PCT. However P22 has a thread on here about tapering testosterone as PCT, instead of taking the typical PCT drugs. It has done well for many in retaining more gains and making a smoother transition into being "off." I'm not sure you can do it with sust, but look up "Prisoner#22's Test Taper Thread," or something similar. Plus there are current discussions going on about it now in the forum.