Digital BW, The Print

Hi all, I have been using an Epson 1160 with MIS inks for several yrs
now, mostly print in BO mode, and have been more than pleased with the
results.Now that I'm shooting 8x10 film I'd like to print larger,
16x20 to be exact.What would be a good printer to get.So far I'm only
familiar with somewhat newer models like the Epson 4800, and 3800.Is
going with dedicated bw inks still the best solution, or are the K3
inks worth a try.Thanks

Chris