The Venezuelan map is quite interesting. In this version they have at least highlighted the "Zona de Reclamacion" with stripes.
So, according to Venezuela, Guyana consists of Georgetown and Berbice. Good enough, no?
I mean, who cares about region 1, 2, 3, 7, 8, 9 and 10?!
Guyana would just have to give up the gold mining, the bauxite mining, Shell Beach, Rupununi. And we'd still keep Orealla, 63 Beach and GT!