86 Festival--No Vin!!

I own an 86 Festival, that's located in a mobile home park...I'm not the original owner and I'm trying to sell it to someone who is getting a loan through the bank for it...They need the vin number...The park manager only has the year, make and model info, no vin! I have looked EVERYWHERE! Break panel, water heater, furnace, cupboards, closets and beams under the trailer! No where!!! Where else can I find (whether it be on/in the mobile home) the vin number?!