Actually, maybe I'm worrying too much.
8411 55lb. Frio Gloss 7x10 50 Sheets
PRESCORED Folds to 5" x 7" Top Seller $18.25
8413 55lb. Frio Gloss 8.5x11 50 Sheets
Folds to 5.5" x 8.5" $24.48
Using a $200 stack trimmer, it would be pretty quick to print the 8.5 x 11 prescored cards and then cut them down to 7 x 10 full bleed. An additional $0.12 per card.
I wonder if the ink savings vs. the Epson 3800 would offset the discarded paper on the cut-off bleeds.