Why are you planning to run such low doses of EQ' and test'? If you think that higher doses will kill your libido, you should know that I am both 59-years-old and in the eleventh week of a Test' C and EQ cycle (500mgs of Test' and 600mgs of EQ per week). I am constantly horny, and I am now more ripped than ever before - 6.9% body fat with strong definition and incredible hardness; having begun said cycle with 8.4% body fat.
But I know for a fact that I would not have achieved these results had I run these compounds in the amounts that you are planning to run.
So don't be afraid of higher doses. Simply be sure to take 12.5mgs of aromasin EOD, keep your diet very, very clean, and train with great intensity. You'll thank me later.