I'm looking at upgrading my Roland SP540V for something faster as I'm producing a lot of coroplast signs these days and it can't keep up. I'd prefer to stick with Roland but open to other suggestions. I'll probably go for 64 inch, it needs to contour cut as well, and have take up roller. I'd prefer not to buy brand new and wondering about the speeds of older models. Print quality and reliability are essential also. Any help appreciated.