auto folding mirrors are the dogs balls, friend of mine has them and said is yours not like this so went and looked at the adjustement mirror dial on drivers side which gives it away are auto folding you are able to rotate the dial to 6pm where as manual only allows 9pm and 3pm.
Did you mod allow you to fold them using the drivers mirror adjustment dial i take it ?
try ebay for parts pretty good for some things but do get dodgy characters, living in northern ireland and breakers have not a good selection but i feel your pain with wanting a local drive than driving half way up the countryside.