Digital BW, The Print

I'd like to use Epson Enhanced Matte in my R2400 for some panoramics
with Piezography (which works beautifully for me), but can't find 13
inch roll paper.

Has anyone tried having a larger, e.g. 24 inch roll cut into 13 and 11
inch rolls?  And if so, who, what and where?   The only guillotine
cutter a friend has can't handle this big of a roll.  Or is there a
special source of 13, or a reason it isn't available?

I figure I could print well on both sizes as some of the pans don't go
beyond 10 inches wide by 30-40 inches.

Dave