Like you, I use an Epson R3000 printer which I find to be absolutely superb for black and white.
For colour prints, I use profiles produced by the ColorMunki for each paper type that I frequently use. That works well.
For black and white prints, however, I found that using ColorMunki profiles (or, indeed, the profiles supplied by paper manufacturers) was either unnecessary or, in some cases, counter-productive.
What I have found is that using both types of paper that I routinely use for black and white printing - Fotospeed Platinum Baryta and Ilford Gold Mono Silk - I get absolutely fabulous prints using Epson's own Advanced B&W setting.
Set Lightroom to allow the printer to manage the printing, open Page Setup, in the Print Setup window click on Properties, set paper type to Epson Premium Luster (sic), Color to Advanced B&W Photo, Print Quality to Max Quality and Mode to Neutral.
Bob's your uncle.