The 5000 can do pretty much anything the 8000 can do. I believe the main difference is the downforce between the two.
If your printers are in the 40 inch range, of course go with a 40 inch range cutter. Better would be a 48 inch cutter. Most vinyl comes in 24, and 48 inch widths. You can cut 24 inch vinyl in a 48 inch machine, but doesn't work so well the other way.
If your printers are in the 40 inch range, of course go with a 40 inch range cutter. Better would be a 48 inch cutter. Most vinyl comes in 24, and 48 inch widths. You can cut 24 inch vinyl in a 48 inch machine, but doesn't work so well the other way.