No, please do answer the post!!!
Seriously, thanks for the suggestion. After thinking about it some more, it does seem to be the more sensible approach. The SPS tank will benefit from the higher-tech setup, the ritteri has done OK on the last 12 months on just a simple (and undersized) counter-current skimmer, so it's true that the RSB should be more than ample. I guess realistically to go with the bullet in a stand, it's better to just put it IN the sump and as Doug suggests maybe a bigger sump is the answer for that. But, at this point I don't want to be looking at a buying any more equipment other than the necessities (I still need a sump return pump, so money is wiser spent/saved-up for that in the short term!) Heh, I guess my 50g would make an awesome sump but I don't think it will fit in the bowfront's stand