Cargo pod for 336

Am soon to pick-up a 336. Will be putting it to use in business of cargo transport. Have looked high & low for a used cargo pod, but no luck. Where can I find one or does anyone know if a C-206 cargo pod can fit on a 336? My business is in Alaska where dirt airstrips/airports are abundant. Have also been told I should get a nose tire deflector to save damage to rear prop. Anyone out there know about these and where they can be gotten? Many thanks to anyone with this info.