that is a strat with a slightly diferent neck and pocket. it is a bit closer to the bridge and the board has "no overhang" i don't know if mim fat strats are like this or just usa fat strats. the overhang vs. no overhang is not the problem just the neck pocket position. to check yours for compatability remove the neck, does the end of the fret board exten past over the top of the pick guard? if yes the guitar has a compatible neck pocket. that is to assume you have a 22 fret neck. all 21 fret fender necks have a compatible pocket, that is not to say you wont have a p/u clearence problem if you add a 22 fret neck on a 21 fret guitar. i hope that was clear.
if you have one of these weird 22 fret necks with no overhang you're SOL. just build a new guitar. you can always borrow parts from the MIM strat. that is just my opinion of coarse. it is posible to either fill the neck pocket or move the bribge but it's a bit of a hassle. you can also fill and redrill the neck and body holes and leave the gap, just make sure the nut is just over 25.5 inches from the bridge saddles. an aditional 1/8" should be enough for good intonation. a 21 fret pick guard can help with alignment and hide any unsightly gaps. good luck!