Digital BW, The Print

Hello,
I�m in the process of researching the web, which would be the best route for meto go with an Epson r1430 converted to a black and white only printer. Some years ago I got very kind help here when I started b&w inkjet-printing. There are very very kind and competent people here.
I�m already using the UT3d inkset in an r285 (r290 in US I think,I�m from Germany). I get very good results. Now that I finally quit my darkroom totally cause since I use the Sigma dp2 merrill for my b&w photography 6x7  has no real advantage anymore. The only reason for me to keep the darkroom over the last years was the look of not so much enlarged medium format negatives, that I loved. It was a look I�ve never seen in smaller (A4) digital prints. I always thought it was thelimited resolution of the print and not the filmcapturing. Since I worked with teh absolutely amazing sigma files in the last few weeks, which look amazing in A4 i doubt it is the printer. So I will finally close the doors of my dakroom now. I think I can nearly get a r1430 (A3  is all that I need) with just selling my enlarginglenses. I read online about K7 vs. Eboni6. Has eboni6 really the 6 different dillution avantage like the cone inks (concerning resolution)? 
In Germany there is an inksupplier called farbenwerk.com from where I got my UT3d set some years ago. They sell a 100% carbon matte set to (carbonprint museum), does anybody know if that is eboni6 ? With the UT3d inkset I have the opportunity to switch betwenn matte and glossy printing. I get very good prints on the Ilford mono FB paper. But for the 1430 I think I will go for a matte set. I read about Paul�s way to mix a matte set, but have problems to get all the ingredients here in Germany. Has anybody done that in Germany/Europe and can give me advice?
OK! to keep it short: Is there an advantage (resolution wise) from (more expensive) cone K7 matte sets (or maybe the MPS set for glossy+matte) over UT3d or eboni6? 

Marcus