Sounds like a normal transitional to me, but I am not much of an expert. I focused my interests in the 70's cz 75 pistols. But that being said, the transitional ones are considered desirable to many, but possibly more for those who collect every year and variant. There's quite a few of those here on these boards.
I don't know if its value would be much different than a normal 75. Somewhere in the $600 to $800 range depending on the buyer and how you sell it. I rarely see normal 75's that sell outside that range unless they have no import markings or are 1980 or older short rails. People tend to favor the rounded trigger guard. The interesting thing on yours is that the B is not present on the slide, so that could work in your favor.
The pre ban mags have a thick groove at the base compared to a modern 75 mag which has no groove down there. The newer 75's will take both mags, but the older 75's will only take the pre ban mags. Those tend to run about $70 fairly often. Any more than that and they are gouging and should be ignored. Apart from that distinction, I don't think there is a difference in the mags after 1985. The 75 and 85 use the same magazine.
So, my guess is $600 to $800. Not a comforting range, I know, but I'd have to pay attention to online sales for a while to give a better answer.