[chumbucket]

Seakindly, If I had the cuddy cabin model boat instead of a center console, I'd probably set it up with a roller too. I did this on another boat I owned about 12 years ago and I really was happy with the convenience it offered. Not sure what the roller that you bought looks like, but it helps to get one with the loop over the top above the roller itself. It keeps the anchor and rode on the roller and doesn't allow it to slip off. I can try to get pics of my friends V20 set up with the roller but you'll probably come up with a solution by then. He mounted the roller directly to the bow foredeck, through bolted it with an aluminum backing plate, then mounted the cleat off to one side. It really works out good because you can stand inside the cabin in safety and work the anchor. He covered the drop down space between the cabin cushions with a fiberglass panel strong enough to stand on. And can be lifted out to gain access to storage below. Also, instead of the chain tensioner, he's got some sort of fitting that has a thumb screw with a big knob. The screw, when tightened, goes into a drilled hole in the anchor shank. Once mounted, he just drops the rode and chain into a deck pipe and into the anchor locker below. The thumb screw allows enough room for the hatch to slide all the way forward.
You'll figure it out. Good luck.