Currently, I have Epson SureColor P400 13" wide format printer that uses UltraChrome inks which are archival. It can take "Fine Art" archival paper like the Epson Cold Press. I invested in this printer because I wanted to be able to do larger prints. I do a handful of conventions and art shows selling a large number of prints, so it was worth the investment. In fact, this is my second printer of the same quality. I don't know if Epson makes a smaller format printer that uses archival inks and prints archival paper. I have heard other artists using (I think) Epson Artisan printer with Ultra Premium Presentation Matte paper and they were very happy with it.
Doing your own printing can become very frustrating. Color correcting, running out of inks, stocking up on paper and packaging/shipping supplies... I have a cabinet full of backing boards, mats, shipping envelopes, and sleeves. And you need a clean area to put it all together. And learning the technical stuff like "ICC profiles"...
Also, the shipping process can be crazy!
Hope that helps. Good luck!