I've kept out of the more serious side of this discussion so far
However, it looks like there are very few hulls in that range that will take 130hp twins. It may be that you are hunting for a boat that doesn't exist. 6-7m, good offshore hull, twin 130's, cheapish.
An alternative might be to look at the Redbay Suzuki demo boat., Redbay 650, twin Suzi-Wong 90's (great economy) - 40kts. Standard fuel tank is 180L - good range too. They fit Ermintrude etecs as an alternative.
Their 7.5/750 will take twin 115 four strokes - but the hull will only give mid/high 30s.
Hope you find her out there somewhere!