The Micros e7 series POS system is sold by Omni in Belize City (aka ESS Solutions). They sell and support the hardware/software solution. Monique can help you:
Electronic Solutions & Supplies
529 Buttonwood Bay
Belize City , Belize
Also Julian at CSM sells a variety of solutions - not sure whether he keeps parts in stock - while ESS has a support agreement that includes replacement components.