Rimmers have production line take off.......a little pricey for my tastes, but I'm sure if you contact Ron Mills at Best of British Rover, he would be able to sort you out at a more reasonable price
LINK
I've been down this road before.........more than once or twice unfortunately, the other option is to source a good used block, preferable one which has been a 1400 is a former life.
Brian
