For Adex just take as much as is needed to avoid gyno and other sides. For example: I'm very prone to gyno so on my recent cycle I started at .5mg/day. A week in my nipple started becoming sensitive and I started bloating up so I upped the dose. Common dosing is anywhere from zero or .25mg every other day up to 1mg/day. Start low and work your way up to find what works best for you.
As for HCG, many people, me included, are not very fond of it. There're a lot of horror stories out there about its effect on your testes, but it is known to make recovery easier and keep your testes full during the cycle, so do whatever you'd prefer. There are so many dosing opinions out there, I don't even know where to begin with helping you on that one. I'd just avoid it altogether, personally.