That looks like a solid protocol. I'm running a similar one with pretty good results. Knocked my wife up after a couple months but we lost the pregnancy and are trying again.
You dont *have* to drop the trt but it can only help to take it out for at least a few months. With the hmg, hcg, and enclo you're test levels should still be pretty high. You'll just have to be aware of your test/e2 ratio.
I had CoQ10 recommended to me for motility along with glutathione, can't say if one works better by than the other but aside from cost it won't hurt.
If you're taking finasteride or anything along those lines its important to drop that for morphology as well.
Good luck brother!