Hello Malcolm and welcome to the club.
There's lots to read about on here to keep you occupied into the new year including some useful links in my forum signature
As for production numbers, according to the MG Rover build records, there were
301 1.8 non turbo ZT-Ts produced and
552 1.8 turbo ZT-Ts assembled, 290 of which were mk1 and 262 facelift models.