#1
Alright so I had my whole strat upgrade ready, then I went to double check things. I completely forgot the the Clapton mid boost control will take up more room. I looked at a gutted body of his strat vs a mim strat.
http://cgi.ebay.com/2009-American-Fender-Stratocaster-CLAPTON-Strat-BODY_W0QQitemZ360211082342QQcmdZViewItemQQptZGuitar_Accessories?hash=item53de40ec66

mexico body doesn't have the square cut out. I'm wondering if I'll be able to fit a mid boost kit into mine without cutting a chunk out.
#2
If you're talking about the GFS kit, then it should still fit. I got a similar kit from them and it was a circuit board attached to a pot, so it dropped into the control cavity. You can email them to ask if it'll fit, but they'll just lie to you like they did with me. I have an SG though, which has FAR less room inside than your strat.
Telecaster - SG - Jaguar
Princeton Reverb, Extra Reverb
P-Bass - Mustang Bass
Apogee Duet 2 - Ableton Suite
#4
Looks like you may have to do some routing for that thing. Shouldn't be a huge deal, just carve out a hole under the pickguard, it doesn't even have to look good.
Telecaster - SG - Jaguar
Princeton Reverb, Extra Reverb
P-Bass - Mustang Bass
Apogee Duet 2 - Ableton Suite
#5
So you have to remove the pickguard every time want to change the battery?

Of course, that could be modded fairly easily, but I'd think you'd need to do a little routing even if you want to stick the battery in the trem spring area. I'd recommend routing out for a battery box like this one, though:

http://www.allparts.com/Battery-Compartment-p/ep-0929-023.htm

& since you're routing anyway...