Di Marzio®/IBZ pickups I want to emulate the Vai pickup combination. Your Clip Lock® nylon strap is too long for me even if I adjust it short. All of our full-size humbuckers except the X2N® and D Activator-X™ are available in two polepiece spacings. For proper string alignment and balanced output, F-spaced humbuckers should be used in the bridge position on all guitars with string spacing at the bridge of 2.1" (53 mm) or greater.
On these guitars, if the nut width is 1-11/16” (43 mm) or greater, F-spaced pickups can be used in the neck position as well.
However, over the last decade or so, the MIMs has gotten a considerable face lift and the overall quality is very high.
The System I tremolo system uses a behind the nut string locking mechanism and was manufactured by Gotoh.
The System II and System III bridges have individual string height and individual string intonation adjustments.
This has nothing to do with what models you choose or how much they cost.
You could very well build the guitar yourself from scrap metal but what’s important is that you’re comfortable with holding the guitar in your hands, playing it and the sound it creates.