could be pluaseable if being used as a company car as company will put it all through there books (depends where he works)

if it was me i would ask for a contact number of the person needing the info at his work etc then

ring them direct with info if when you phone up they now nothing then its dodgy

if its all above board ask for a bank transfer from them its a business so shouldn't have a problem with this method and

its cash in your account then get back to guy to say he can collect

if your banks got it it can be in your account within 2 hrs on a faster payments process 3dys max

hope this helps