I just have to add this. You seem to think using the RE4 engine will not reduce the time, work and money. It seems you have no idea what the purpose of using a game engine is.
This is the definition from the wikipedia page for "game engine":
"Game engines provide a suite of visual development tools in addition to reusable software components. These tools are generally provided in an integrated development environment to enable simplified, rapid development of games in a data-driven manner. These games engines are sometimes called "game middleware" because, as with the business sense of the term, they provide a flexible and reusable software platform which provides all the core functionality needed, right out of the box, to develop a game application while reducing costs, complexities, and time-to-market—all critical factors in the highly competitive video game industry."
In other words, using the RE4 engine ELIMINATES most of the cost and work you claim would be there.
A flashy-first game is awesome when it comes out. A great-first game is awesome forever.
Plus, just for the hell of it: Kelly Brook at the 2008 BAFTAs
Essay Pro