i'm not certain of which is best for your ribbons but my experience is with the t15 and c84's in conjunction with cheap ribbons. i needed more gain to get the levels in line with my other tracks. increased gain yielded noise so i've been looking at the triton fethead as a signal booster before going into the pre. here's the lingo -
http://tritonaudio.com/index.php?sectionid=4&option=com_content&task=category&id=17&Itemid=33
there's others on the market. Michael Joly of Oktavamod hardwires the fetheads onto ribbons so i thought these would be a good place to start.
so, to answer your question the best i can - get whatever pre and ribbon you want and if you need more signal get a fethead or similar device.