My advice: do not stereo mic the lead guitar. Do not use the Nady condenser mics on guitar cabs. Don't use them on anything if you can avoid it. Use one of those AKGs on each guitar cab. Move the mics around to find the sweet sounding spot in front of the speaker. If you want a stereo effect on the lead guitar during solos, a little bit of stereo delay will do nicely. Having stereo guitar tracks is going to make it difficult to mix (unless you are to pan both of the mics to the same spot or very close to each other). Compression during tracking is pretty standard in most "pro" recording setups. But make sure to be gentle with the ratio / subtle with the amount of gain reduction unless you're sure a more aggressive compression approach will work in your mix.
That's probably a good idea not going stereo, but I will probably still use the Nady as 1 guitarist uses a lot of distortion and I have heard that the Nady is very good for that.