Judging by the cabinet shape, it probably started life as Elevator Action... or some other Taito game of that era. Take a look at the attached graphic or do a search on Taito cabinets.
As far as what its worth...in parts alone... let's put it like this... to scratch build a cabinet, new parts would run you about $400-700. Wood, monitor, coin door, power supply, wiring, etc. Its also basically impossible to buy a new CRT these days.
If it were me,.I'd sell the WWE and double dragon stuff and restore it to any of the very cool old-school Taito machines... or I'd pass on it and scratch build something that I really want instead.