100 mon ouroboros pendant

This will be for a pendant using a 100 mon coin from the Japanese edo period. I want an ouroboros (snake eating it’s own tail) which fits around the coin. a 3.2mm snake body with a proportional sized head and thinner at the tail. I’d like the portion where the snake is eating it’s own tail to be like the top of a figure eight rotated 90 degrees creating a bail for a necklace to fit through, 3.5mm clearance in the bail should suffice. I’d also like a shallow heart pattern throughout the snakes body. I included some pictures of prototype wax models along with the dimensions of of the coin to fit it around in the files. If you have any more questions I’d be glad to provide more information