Digital BW, The Print

I'm looking for an easy to use printer & b-w ink combination to put in
the car and take to workshops or wherever, the idea being I can run
some prints at night from digital files using my laptop.  I was
focusing on the C86 but see it is now the C88 (and Epson has given the
inks a slightly different name) and now I read this post about the R200.

I'm still thinking about the C88 because it is apparently smaller (per
the published dimensions) but am waiting to hear if or when MIS will
have the EZ inks for it (or for that matter, for the R200).

If anyone can give me information on the availability of the EZ inks
for either of these printers, or for that matter comment generally or
specifically on the C88 versus the R200, I'd very much appreciate it.

Thanks,

--Bob