You could loop through a list of models when your resource starts and check if the model is lowLOD by doing something like:
local lowLOD = {}
local obj = createObject ( 69, 0, 0, 0 )
for k=A, B do
setElementModel ( obj, A )
if getLowLODElement ( obj ) then
lowLOD[A] = true
end
end
destroyElement ( obj )
Not sure if this works - in any case, hope it helps.