Before you start taking anything, look for some logs of others running that stack and see what's being done for on cycle support and pct. Also read up on general pct info on ai's, serms, etc and the difference between otc and non-otc ptc protocols and when each is appropriate.
Im pretty sure if you take a few days to do that you'll have a much better idea what you're doing.
I haven't read up too much on that stack but I do think its pretty mild. If it calls for an otc ptc I would recommend erase/erase pro or triazole and some daa. Also would be worth it to get yourself a good serm like clomid just in case you're super gyno prone. No way of knowing until its too late and then u don't want to be waiting on your meds to come in while your boobies are starting to poke. Lol.