My dad just got his LBS to swap out the wheels on his
1974 continental for him and the new set of "machine built" alloy 27 x 1 1/4 wheels was $85. They moved over his freewheel for no additional charge when he came to pick up the new wheels after they had come in.
Most good LBS love the kind of business they get from us C&Vers. Bike shops don't really make profit on selling bikes they're counting on you to come back for all that other stuff you don't know you need yet and they'll make their money on you there. And on labor of course but I just don't trust more than 1 bike mechanic I know to go anywhere near my bike with a wrench.