I believe that removing the 6 "special" headed bolts from the inner CV joint is all you need to do. CV then comes off of the axle flange which stays on the differential (removing internal clips allows a change of flanges). Removing the outer nut will then allow the axle to be removed from the wheel hub (dose with penetrating oil beforehand). You do need the special tool for the inners (NAPA has it). If the above is correct for your car, I've found it easier to use a bunch of extensions and work from outside, rather than under. A pipe between the lugbolts to keep anything from turning and another pipe on the breaker bar to get the CV bolts free, rotating the axle to put each bolt in a position that the boot will not interfere with. If the heads strip, then its back underneath with a grinder and a trip to the parts place for a new bolt
Have fun!