Even if you don't find the perfect distro it should be fairly straight forwards to do yourself. I'd start off with a basic Rpi distro and try out the various RDP and VNC clients to see if any tick your boxes.
@Stonehedge started
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Even if you don't find the perfect distro it should be fairly straight forwards to do yourself. I'd start off with a basic Rpi distro and try out the various RDP and VNC clients to see if any tick your boxes.