You might find a short-frame toggle switch easier to fit than a right-angled one as it gives you a bit more room between components.
I don't know if there are any benefits of the longer frame switches over the shorter ones? I know Gibson normally use the longer frame models (and the right-angled switches by design need a long contact length), but was that originally from expedience as that was what was around, and now they just use them because of tradition?