what kind of manufactured home do I have

[Mike]

I am trying to buy a manufactured home and we can not find anywhere on the home a sticker or plate with a number or anything. i do know that it is a 71 and I need to have it upgraded to a 76 in order to buy it. What can i do? There is no plate on this home. There is siding on it, is it possible that it is under the siding? Also in order for me to buy it, it has to be a 76? Is there somewhere were I can purchase a sticker or plate for a 76 model?

Thank you for your time

P.S I don't have much time left escrow will be over.....HELP!!!!!!