A fool's errand, frames are designed around a given wheel size ..

+ 24" wheels are not so common a tires spare ..

a well fitted made to fit the rider bike is Manufactured in Oregon is
Bike Friday and they build around the common 406-20" wheel

they are a nice bike , abundant choices of whats fitted on it ,
since its made when your order comes up in the queue.

their consultants will get the fit and parts to suit you and ship it to your house..

Then, all you have to do is not get it swiped by your covetous neighbors.