Yeah, my guy has the claspers. It was hard to tell with him moving around so much.
Male reticulated rays usually cost $50, females are usually 10% more than males. Motoros are around $100-$150 and other breeds go into the thousands.
If you can't get one there, let me know. My LFS is very good about ordering stuff for me and I can pick it up for you.
Hell, they got 6 blue botias for me in 2 days
If you are going to do a ray, check out senegalus polypterus. Those are my second favorite fish behind rays and they go very well with rays. All 3 of mine hand feed.