Insulated mobile home Skirting Question

[ideallysleary]

The insulated skirting allows me to ignore frost completely according to their documents. So, I need my HUD 309 inspector to sign off on it and also the local building department (they inspect footing and life safety for parks). Even if my existing slab is not in good condition, I can sawcut the existing slab where my footings are located, dig out an extra 4" of dirt, and fill back to existing slab grade with concrete to provide my 8" footing.