Can you run air bags without drop spindles on a 64 c10?

[64chevtruck]

Hi guys, Ive run old chev trux since I was 15 years old, Still running them at 43 I just have more money to spend on toys now. All my life ive cut or heated the springs to lower them,

Im now currently collecting all the parts to make a full air ride suspension, I was wondering if I can just put the bags in for now, and put drop spindles in later>>? Or should it all be done at the same time?

Thanks in advance