Hello folks, I need some advice


I recently aquired an Apollo Commuter bike with the intention of putting a nexus IGH hub in it.
It was only once I got the bike home that I discovered it has 650b wheels and not conventional 26" as was advertised.

Whilst I know 650b bikes are growing in popularity, the simple fact is that finding decent-priced 650b rims and tyres in Australia is damn near impossible, and im trying to stick to a tight budget on this build

My question is this: has anyone successfully swapped out 650b wheels for 26"? the bike has side-pull brakes and by my measurement using long-drop bmx calipers I should have no brake problems