Replace my appliances?

We have a Moffat 2030 Built in Automatic Oven and a Moffat 2030 Built in Hotplate and they were installed about 1981. Whilst they are both still in very good working order, we are thinking of replaceing them. Obviously, we appreciate that they are vboth now mout of date and not avaiailable. However, as we have been so pleased with them, what do you suggest we replace them with and who do we contact etc. We would be very grateful for your advice.