IF all your stats posted are true and correct, then you are in perfect position to start a cycle! Congrats! You have accomplished a proper natural base and should enjoy an awesome and very rewarding cycle if you do things properly! You are literally in the ideal position to begin.
I would recommend one of the following 3 cycles. If you want to a very basic single compound cycle, do the first one. If you want a lean bulk cycle, do the second one. IF you want a SUPER lean bulk or recomp or cut cycle, use the 3rd one (could be used to lean bulk, recomp, or cut).
I am not offering PCT advice, as I am on test for life and do not do pct’s, so ask someone else for this! PCT is definitely necessary for you though!
Beginner option 1
Weeks 1-10 Test E 500mg/week
Weeks 1-10 10mgnolva/day
Beginner option 2
Weeks 1-12/14 Test E 400mg/week
weeks 1-12/14 EQ 600mg/week
Weeks 1-12/14 nolva 10mg/day
Beginner option 3
weeks 1-8/10 Test prop 350mg/week
weeks 1-8/10 Masteron prop 350mg to 437.5mg/week
You SHOULD not need an AI at all with this cycle, as masteron’s slight anti E benefits should suffice, but I would have nolva on hand and do 10mg/day protocol if necessary or if nervous!
I recommend 10mg of nolva per day over arimidex FOR SURE! You can use nolva during cycle as anti E and still use it for pct also… IF you insist on arimidex I would halve the dosage to start, its very powerful and can hurt gains if too much is used for your body! IF using arimidex I recommend getting bloods done a couple times to make sure your estrogen levels are at an optimal range, basically way simpler and better to just use nolva in my opinion!
Since you sound like you’d like to be leaner and harder with maybe a bit more mass, I would try a very lean bulk (only a few hundred cals over maintenance) with the third cycle option!
I hope these options help you! Your purposed cycle of 250mg test will benefit you, but you are literally in the perfect position to start a cycle, and after being so patient I think you have earned the right to do a proper beginners cycle! IF you insist on 250mg test a week DEFINITELY go with 10mg nolva, or lower arimidex, or no AI really its such a low dose, I am gyno sensitive and id be fine without AI on 250 test.