Since you are on TRT anyway, the concerns for HPTA suppression most likely don’t apply.
In this case, the cycle length is not so much an issue, but rather total amount of steroids used per year is I think the closest, although imperfect, approximation of overall health impact.
Unless in an extreme rush, you could accomplish your goal with far lower dosage and not that much greater time.
Simply adding the Masteron Dromostanolone Propionate and leaving testosterone the same would give you rapid progress towards your goal and it would be probably, roughly speaking, 90% achievable in a reasonable time frame. A rather short period at higher dose could then get you fully to your goal. The total amount of drugs used would be less, because of operating at a more efficient part of the dose/response curve .
The kind of dosage you posted is way into the “diminishing returns” area.
For quite a while into it, your results with half your posted dosage level would give nearly the same results per week, because of the above reason and also because you are regaining. So it would be more efficient and would use less drugs per year to use a much lower dose for a somewhat longer time, on the assumption that LH production has been given up on anyway.
In that case I expect you will be very pleased from adding just Masteron while keeping testosterone the same.
I would monitor blood lipids, blood pressure, and red blood cell count to be sure of not overdoing it.
Because of planning on permanent HRT anyway, cycle length isn’t really a concern.
If focusing strongly on health and talking about the long term, I would look at keeping total steroid use down to a probable maximum of something like 20 grams per year, or an average of about 300-400 mg/week.
So, having a period of going above that will mean having periods of being below that, to average things out. The more you go over, the more you will later have to go under.
Adding for example 300-400 mg/week Masteron to your 100 mg/week testosterone will do a lot for you in your situation and I think you’ll be very pleased with it. To say the least you will add some lean mass and largely regain what you have achieved before, with reasonable speed. And you could likely continue with 100 mg/week Masteron indefinitely after your cycle and be well ahead of the game compared to having done a higher dose cycle but then having to use less later to compensate.
Keep in mind, the 20 grams per year value is a really rough number that has to be interpreted as being a ballpark value rather than a sharp cutoff. It is definitely just a general approximation rather than a proven value let alone accurate for every individual.
Then at some point in the future, having regained the greater part of what you had before, then it could be productive to go for a short time at a much higher dose to push to a new level, if desired.
But right now you don’t need that level, because you are regaining, and as HPTA recovery isn’t an issue, there isn’t the factor of packing in the same amount of drug into a shorter time frame (using higher dose per week) to achieve better recovery for given results.