7 TC's!?!?!?!?!?! You will never finish them anyway. Why dont you offer your hand over at TR. Atleast its something thats likely to be finished.
I have nothing whatsoever against TR... but the question would be "Why should I invest months or years perhaps to work on a project that I am really not all that interested in?"
As for finishing it, who cares? I've worked on mine for years now, and lost it twice to crashed hard drives and general computer issues. I recently restarted it from scratch because, while I am far from being any kind of "expert" modder, my skills have improved to the point that I can see all the screw-ups I made initially due to lack of expertise or knowledge of the CS or the many utilities needed to create a TC.
I stand a far better chance of doing it right from here on... had I been working on a team project like TR, the inferior workmanship would either have had to stay screwed up or not, or maybe I would have been booted from the team while I was learning, or the just criticism might have caused me to just quit modding entirely, and consider it a loss.
All of those things aside, here is the real reason to work alone on a TC... It allows me (or whoever) to enjoy the act of creation entirely unfettered from the expectations of others or suffer from boundaries imposed by the structured world of Morrowind. No worries about "lore compatible" if everyone knows going in that there is no lore other than what is created by the modder.
Modding is just enjoyable, and my TC is more so in an exponential fashion. I really don't care if it gets finished or not.