It's a huge deal to change away from 4x114.3 to anything else, there aren't any parts that will swap in to do that unfortunately. I won't say it's impossible, if you really wanted you might be able to switch to 4x100 pattern, but you'd need custom brakes in the front and some serious suspension work in the rear. There isn't much available for 4x100 that can't be had in 4x114.3 already though
There's a fair bit out there for 4x114.3, you should be able to find something at least close to what you want.