4-5 Al80 tanks - is maximum for Sidemount dive with wetsuit up to 130 ft !!!
One Al80 has 80cu.ft of air. Weight of the air is around 0.074887 lbs per cu.ft. Total weight of the air in tank around 5.8 lb. In real used not more than 5 lbs of air.
So - between start of the dive and the end you can have weight difference of 5*4=20 lbs!
biggest SM wings have around 40 lbs lift capasity.
So - reminder is 20lbs...
Remember this thread
Wetsuit buoyancy: Loss in depth - how big should be BCD
I count there weight loss for 9mm suit, and for 7mm wetsuit it will be around 17 lbs.
If we have dive from surface to 130 ft with 7mm wetsuit - we have bouyancy loss of 17 lbs.
so - 20+17 = 37 lbs - it is minimal lift capacity of SM wing for the four tanks. And safety margin here is around 3 lbs (e.g. for XDeep Stealth with 40 lbs lift cap.) - it is nothing...
So - not ten, not eight - not more than four Al80 is usable for SM diving with wetsuit.