First try raising the pickup a little. It's obvious and you've probably already tried it - just checking though.
If you like how it plays and looks then I would say keep it and wait till you can afford a twanggy guitar.
If you really must have the twang then I think you need to take it back and get a classic vibe.
That is a beautiful guitar you have there though. It's making me want one. I already have the twang covered but I want that for it's potential for interesting sounds a la Johnny Greenwood.