Hello, welcome and well done on buying a Dolomite to
use, rather than as some sort of sterile trailer quean.
I only bought my '72 auto in October 2008, total mileage was then 40,000. Total mileage is now above 70,000 and that car has
never failed to complete a journey, some of which have involved 400 mile trips in one hit. Sure, there have been some very minor issues but the only modern car I ever bought needed a lot more and wasn't dependable.
The Sprint should surely be
at least as good for daily work as a bog-stock Dolomite and if you treat them right, they won't let you down.
Buy
lots of Shell Ensis fluid (number five if you can get it), pour it into every possible place that rust could hide and even in areas that use salt, the odd winter won't hurt it.