Older bikes with 27" wheels, especially the step-thru type, are cheaply available here in Poland, I have one in my garage that has kindly donated its parts to various projects.
Is buying such a bike a possibility just for the wheels?
As a side note I avoid referring to them as Ladies' bikes as they are ridden by men as often as women here in rural Eastern Poland as they are a darn sight easier to get on and off when the front and rear baskets are full of produce. As a second side note, the local DIY store keep threatening not to replace their in-store baskets as they keep getting stolen by people to mount on the back of their bicycles...
Nice chrome rims definitely look nice; however, aluminum alloy rims win on functionality. Alloy rims are lighter and stop quicker with rim brakes. Chrome rims are especially tough to stop when wet. Have fun!