If you can get it working for colour, perhaps with OEM, then you can get Epson profiles for the 2100/2200 here:
http://www.epson.com/cgi-bin/Store/EditorialAnnouncement.jsp?oid=42114986
Note that Epson have a strange habit of changing the names of some of their papers. For example Archival Matte was renamed Enhanced Matte in the US, but not elsewhere, and has now been renamed Ultra Premium Presentation Paper Matte Paper (I think). I'd use Premium Glossy for regular Glossy, or you could pay someone to make just one profile. To use these profiles, you'd need to turn on colour management in the Epson driver and print from Photoshop or some other program that uses colour management.
If you can't get it working, and you want to have both a colour and a B&W printer, then I think you're going to need a new colour printer. I think the 1410 is the best option for a dedicated B&W inkset. It's one of the last printers that has carts on the print head, rather than ink lines and dampers, and so is easier to maintain. The 1410 seems to suffer far less from the issue of micro-banding in the first and last inch when printing with QTR that plagues most other desktop printers. So my advice is to keep it going for as long as you can as a B&W printer, try to resuscitate the 2100 for colour, and if you can't then buy something else.
It should have been better, except there was no canned colour profiles for the paper that I had, There is in the paper selection, Plain, Archival Matte, Premium Semigloss, Glossy Paper Photo Weight, Watercolor Paper. I had Archival Matte, Premium Glossy Photo Paper and Glossy Photo Paper. I could match the Archival Matte profile but where were the profiles for the other two.
At the same time I got a good deal on the 1410 and planned to use that for B&W printer. I used the inks that I got the 2000P in the 1410. That sort of worked, but I wondered I that ink was ok for it.
I needed to print some colour the other day, the 2100 wasn't working, so I put a new set of colour carts into the 1410 and it worked well, most of the paper profiles except for Glossy Photo Paper are there.
Now I have a working colour printer and a 2100 colour printer.
Back to the original question, which of the two colour printers to convert to B&W, preferably using the inks that I have.