Lowering my 67 with bags??

[ecgate]

Im thinking about putting airbags on my 67 and was wondering if anybody can give me some input about it. Im new to the airbag stuff so I dont really know much about it. I was really interested in doing something like a RideTech level 1 system. Looks pretty basic and it comes with everything I would need. Any input would be appreciated. Im trying not to break the bank. And do you guys run drop spindles with your airbag setup. How low can you go with out removing your inner fender? Is a C notch a must with airbags? Will airbags improve my ride quality(smoother).