I just finished a similar cycle but I added P-Stanz on top of 30mg of Epistane. Gains were good and moderately keepable. Gained 17 lbs and lost 6-7lbs once pct was finished up. My recommendation is to get blood work done, google anabolicminds cheap blood work. It tells you to use privatemdlabs.com and choose the female hormone panel. This is great, tells you everything but lipids. I would get blood drawn before the cycle for a baseline, after you finish the epistane and start pct, and then one once its all said and done. If you can't afford the bloods don't bother doing a cycle, you will have a hell of a time getting you hormones back to normal by guessing. If you don't get hormones back to normal you can kiss those gains goodbye. It will cost $150 for all three tests.
On top of the bloods I would recommend getting a quality Co-Q10 supplement. I recommend Jarrow Q-absorb or QH-absorb, the latter is the better of the two. Run this at 100-200mg daily. In addition to the Omega 3's Co-Q10 is to protect your heart. PH's will mess up your HDL/LDL/VLDL's which will lead to cardiac damage. Additionally I would throw in Antaeus Labs Aegis, this is for liver protection since cycle assist is only slightly helpful to prevent liver damage. Aegis is TUDCA with Phosphotidlecholine (SP?) added in
http://www.antaeuslabs.com/aegis.html . Run the TUDCA at 250mg 2x per day. TUDCA is the best form of liver protection. Also just know that even with liver sups you WILL get liver damage, your AST/ALT will rise outside of the allowable range after 4 to 6 weeks of cycling PH's. It will probably take another month or so to return to normal. If you allow your values to get to far out of wack you can cause permanent liver damage. Yes everyone says your liver will repair itself but you will have scar tissue which will inhibit proper function.
So this is my recommendation for PCT keep the nolva at either 20/20/10/10 or 40/20/10/10. I think which you use depends on what your bloods look like at week 4/5/6 depending on when you stop the epistane. If your test is super low and estrogen is high I would consider running the second option and taking and take Exemestane/Aromasin. This is the only AI you can use with nolva and it is the best in my opinion. Exemestane info:
http://www.ironmagazine.com/2011/aromasin-exemestane-explained/ . It won't totally crush your estrogen like others will. I think exemestane should be used if you estrogen levels are higher than 35pg/ml. Running 25mg of exemestane ED will drop this down to ~20 pg/ml which is normal for most men, it will also boost Test and IGF-1 while decreasing SBHG which lowers free test. Another thing to look at is DAA dosed at 3mg per day which seems helpful. Look into Ostarine
http://www.steroidology.com/forum/pro-hormone-natural-steroids-steroid-alternatives/621753-so-you-want-try-ostarine-mk2866-here-facts-wonderful-sarm.html I ran this will decent results but it is kinda expensive. Best for the price is ostabol by celtic labs.
During PCT you will lose a lot of mass since you body will dump water. Typically for me I retain my strength but deflate a lot. This cycle I lost 6-7lbs pct, about 1/2' off the arms to give you and idea. I did however retain all of the strength gains. Also be very careful what you eat during PCT since you are in a state where you will put fat on very easily, I recommend a low GI diet but most of use do that anyway.
Bottom line, get blood work done. Use your levels to see if you need to control estrogen during pct with exemestane/aromasin or if you are fine with just nolvadex. Other supps like DAA are helpful if you want to try them. Get some real liver protection by using TUDCA.