Just to even things out a bit, you have Exeter Road Garage, and AE Wilcox in Wickwar.
Both have T4, and are fully conversant with the 75.
Terry ar TS Autos, well there is a fair chance that he worked with the chap who you bought the car from
Anyway, regardless of how nice you find the car, it is never going to have an exhaust note like your MGB, however it will do more than 25MPG and is 118 HP, as opposed to 95BHP for the twin carb B Series.
Welcome along
Brian