Marco and I have had tons of fun regarding cartridges and although I wasn't too keen on the old MP11 (too toppy for 80's systems and highly compliant), I suspect and hope that improvements were made in the interim. You're going to have to trust him though as I don't think anyone stocks them. Today, vinyl based systems are far more neutral so the Nags won't sound toppy methinks..
Ortofon should know how to design a damned good cartridge (they do) but these days, they know how to price the bloody things as well, with loads of middle men taking their cut too. The 2M-Red should be a fine pickup if you can get one at a good price, but better as the higher models may be, all but doubling the price with each stylus upgrade is blatant rip-off to me... (apologies, but I know that better diamonds are next to nothing extra in the quantities Ortofon get through...)
SOME Grado's are delightful, thre cheapest one has the most life, but this is resonance based and as the range goes up into better tips and generators, the sound gets blander and blanderzzzzzzzzzzzzzzzzzzzzzz. Some of the wooden bodied reference ones of old were lovely though, but I don't know the new ones.
Denon DL110 - safe as houses, consistent performance, Sowter make a low gain transformer especially for pickups like this one and it's still around a ton I think.
I'll suggest it again - either the Stanton 680EE/681EEE mk3 or the Pickering XV15/625 depending on which is cheapest. The 625 and 680EE are very similar I believe, differing only in stylus housings as far as I can see. Marco mentioned the availability of fancy styli for these and I'd rather get one for mine rather than yet another Shure V15 pattern stylus.....
Tear down these walls; Cut the ties that held me
Crying out at the top of my voice; Tell me now if you can hear me