In these two ranges, I have both the 135 and the 200 Minolta glass, there were a few tamorns made in this range, but they are not common and vary rarely seen, the 200 f/2.8 Minolta in my opinion is a very underated star, the quality from this lens is fantastic, the 135 is a great performer as well, although it is about what it should sell for, but as long as it does not brake you bank, I would recommend either one of them, however, if not familer with the characteristics of telephoto photography, I would set my sights on the 135 first, this will give you the moderate stack that you asked about, and still allow you to learn a bit about the difficulties with telephoto work, but with either, I think you would be quite please..

Dave