Couple issues there, why are you taking finasteride? Do you already have hairloss issues? If not I would most definitely get rid of that, the side effects are not worth the incredibly small chance that just testosterone at that dosage is going to be a problem for your hairline. Also it seems like you're going on some kind of "taper" protocol which is as far as I know a very outdated way of doing things. There's also no need to be running clomid DURING your cycle, you're going to be supressed while on and clomid isn't going to change that. Run the test @ 500mg per week, divided into two injections of 250mg. .25mg A-dex either every day or every other day, depending on your particular sensitivity/proclivity to estrogenic side effects. I need .25mg ED pretty much but I would start on the low end and see how you react. Run the test like this for 10 weeks, allow two weeks after your last injection for the esters to clear and then run clomid for four weeks. So like this
Test E 500mg per week, 250mg roughly every 3.5 days
Arimidex .25mg every day or every other day
(optional) hcg 500iu 2x weekly
continue with arimidex protocol, or preferably switch to aromasin
100mg clomid every day
clomid 50mg every day
IF and only IF you have switched to aromasin run that during pct @25mg per day the first two weeks and 12.5mg per day the final two weeks of pct. If you are only using arimidex it would be best to drop that at around week 12, as it can cause estrogen rebound issues and you will want to stop it while you're using a serm to prevent gynecomastia etc.
As long as you keep up with diet and training you should be able to maintain a good portion of your gains indefinitely.