Depending on the weight of the blinds I’d absolutely consider an adhesive option. If you can stick a large surface area.
Other wise, no, I wouldn’t trust a molly to hold in luan or more specifically I wouldn’t trust the luan to hold at the point loads or the paneling fasteners.
Find the framing is the best solution I think. Just like in a house.
2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29 - Sold.
Couple of Arctic Fox TCs - Sold