Our C&L 44 also has a pull out under the helm seat. When I got the boat, it was a useless (to me) rolling liquor cabinet, with cut-outs for bottles on the lower shelf and for an ice bucket (also missing) on the upper shelf. It would roll across the floor in rolly weather.
A very early modification was to remove the lower shelf and install a big, red, multi-drawer metal tool chest. The lid had to come off, and the upper shelf of the original cabinet stayed. I have not regretted that mod. One of the small, upper cupboards aft of the table became a perfectly adequate liquor cabinet, that also holds the glassware.
That modification was simple. With basic woodworking skills, you can create whatever you wish for the space. From simply putting a door on it and some shelving, to building a rolling cabinet for your own special purpose, all you need is a plan. Make the front, whether a door or a fancy cabinet, in a style that resembles the rest of the teak cabinetry in the boat and nobody will suspect it wasn't original equipment. If you don't want to tackle it yourself, there are lots of cabinetmaking shops around that will do custom work.