not sure what make or model this toilet is, would like to know this as i have a small problem with the pumping system is it worth canging whole thing, pump or just getting a service kit.
For spares it is very similar to and RC or is that RCM unit - A Jabsco compact unit is very close to the same foot print but you have to move a couple of holes I seem to remember
Google for XM toilet and you will find a number of places offereing spares kits.
£10 for a spares kit has got to be better than the cost of a whole new toilet!