So if you are still considering a MEP just ask yourself how you would feel about £20,000 bills for an annual, or a £70,000 bill when the engines need overhauling. And how about another £50,000 to fit some modern avionics, which will never work as well as those fitted in a newer aircraft because the autopilot is an old out of production model.
20,000 pounds for an annual, how can anyone make it to be that expensive and why would a twin be significantly more than a complex single?
Engine costs can be budgeted for and life remaining is reflected in the purchase price.
Avionics upgrades can be pricey no matter whether it's for a SEP, SET, MEP or MET. Most older autopilots cope pretty well especially with GPSS which is pretty standard these days.