Along whippersnapper's lines, more than 3" is a constant battle with CV boots. The most you can do with the stock configuration is 3". At 3.5" I am changing boots about every 5000 miles or so as they tear due to the rub in the boot itself. The CVs themselves can handle the angle fine, with the diff drop. I would do more research on the best boots but to be honest, as soon as the Baja fenders go on I am going back to stock height, which for me is plus 1" (13 Baja TX).
One further note...just personal experience here...at max droop, with the uniball upper control arms, the steering is at its limit. You have to add limit straps and go max droop, lift the arms one inch and set the straps so you limit out 1/2" before max, or you will bend the steering arm or break the rack.
Finally, my Baja is both an expedition truck and a chase truck for my Class 10 car and other friends of mine I desert race with. So if you often find yourself high speed off road, look into a Total Chaos, Cambug or Solo Motorsports lifts. While it does increase track width, it also increases ride height and you have minimal problems without cutting the cross member. While expensive on the outset, I have done many of these and in my opinion, they are worth the money.