I'm another fan of Rachel Reeves, TerriBull. I really rate her and in fact had a £1 bet on her to be the next PM after Cameron (100/1). It was foiled by his resignation of course and as you say, she's not been in the national news much lately.
Would you rather stay your current age or swap the digits around?
I don't feel qualified to suggest which Ministry should be assigned to them, other than Chancellor for Ed I imagine.