here's what i would do:
1-13 500mg test e
1-12 4-500 mg Eq
1-8 50 mg tren ed
PCT 15-18
the reason for running the tren for the first 8 instead of the last 8 is b/c it will kick in quicker than the test and Eq and it will make recovery easier than running it all the way up to PCT. Plus when youre done with the tren, the test and Eq should be working quite well by then too. No need to mess around with changing the doses. Keep it simple is always the best way to go since its your only cycle. Keeping the dose constant will reduce side effects too