You'll like the boat...I've got a 96 170TF (single console model) with a 115 Merc on it. Is that a 75 on the tail end? If so, it is severely underpowered. Also, check the crossmembers on the trailer thoroughly. I didn't check mine well enough and wound up having to buy a trailer a year after I got the boat, due to the crossmembers rusting completely through. The tubular trailer, even though it has "weep holes" in the bottom of the crossmembers, will rust from the inside out, as the inside of the tubular steel isn't treated or galvanized. The rust will cause the "weep holes" to plug up and allow water to sit in the tubular steel. Other than that, for such a small boat, it handles water pretty well.
If I can ever get back onto my old computer, I have a site bookmarked with a PDF file of the Nitro/Tracker spec sheet on my boat, which should have the same features as yours minus the dual console. I was searching around on the 'net one night at work right after I got mine and found it and emailed the link to myself. I bookmarked it when I got home the next morning, but I have since changed computers and don't have it on this one.