Well if you're gonna get Nolva anyways, just try to use it by itself at 10-20mg a day and see if it helps. If it does then keep using it until your problem goes away and then after a while consider running another cycle.
I was on TRT for a full year with no AI and the doctor just wanted me to discontinue it and see what my levels were naturally after some HCG. So you have daily topical testosterone for a year followed by HCG without an AI. Needless to say with such abrupt discontinuation I developed a slight case of gyno but at the time didn't know what it was. After a while it just went away on it's own and my test levels are normal actually.
I guess my point is that everyones different and people can give you advice, but it boils down to your decision. Everything may turn out perfectly fine with no problems or your gyno could get much worse and that would suck.