You can buy graphtec CE-5000 series, either 24" or 48" $1300 and $2500
These are great machine but weird sizes of the two.
If you decal is less than 22" wide, then buy the small one.
If you decal is larger than 46" then you buy the FC series which cost about $3000 to $5000 about the price of 1 karat flawless diamond.
Do your design in corel draw and put outline of your design as a seperate layer, and the plug-in software using in either corel draw or illustrator will cut from the layer that you want it to be cut buy placing registration mark on the artwork.
You can export the artwork with registration mark to your printer, and cut later. Real easy!
Graphec cutter is really fast, and registration mark detection is very precise. ONE IMPORTANT ADVISE: Use only the original BLADES , don't use the after-market so you can go through 3-4 rolls of 50 yards vinyl with single blade with no issue when you weeding letters. ($35 per blade)