Removing the AC compressor please help!!!!!!!!!!

hey I am removing my AC compressor on my 1987 b2200 does anyone know the correct way to do this?? is there a website or something??

PS.. I am replacing it with a second alternator from a GM 120AMPS and i am running this alternator off its own battery souly for my stereo system.. is there anything i should be concerned about when doing this?

So I will have 2 batterys 2 alternators I dont need an isolator do i?

Thanks