Colin - there are dozens of roll to roll printers in the marketplace, not just the one you mentioned. And, no, the T-Jet Blazer is not the best solution for this type of printing. The
DTG Viper has an image area of 16.5" x 29", the
DTG Bullet has an image area of 24" x 60" and the
DTG Xpress has an image areas of 44" x 100" - both significantly larger than the 17" x 44" image area of the Blazer. And, the Blazer is a functionally extinct printer at this point as US Screen has been out of business for six months.
Besides - based on the size of the images on these shirts, you would most likely only get 1 maybe 1.5 shirts per yard anyway. So a couple hundred yards would translate into a couple hundred shirts.