RD will probably work; if it doesn't you can leave the chain a bit long and let it drag on the small/small (which you really shouldn't use anyway.) I half step with an RD-M560 rated for less chain wrap than yours probably.
FD will be a bit more problematic, it will have to sit high on the seat tube to clear the inner part of the cage over your middle chainring, so it might not have capacity to clear the chain on the granny gear, and it'll require a lot of trimming if it does.
A 24 tooth jump is pretty extreme even for a half step plus granny. My tandem has a 24-42-46 * 12-34 7sp (get the 13-34 K cassette and substitute a 12 and 14 onto the first two positions) which has both a higher top end and a lower low before reaching for the granny.