If I may give my .02 cents, Stick to oem looking, or at least get the 2001 interior if you don't have that. Nothing looks more horrid than trying to use some toyota, nissan, honda interior in a diablo, That's just a dead giveaway, I think you would appreciate it more when it looks oem when the car is done, and on top of that if you had to sell it, it would look more appealing to your buyer. But hey it's your car, do what you like.