need some opinions about bussiness 'morals'

Take it. It sounds like leaving in 6-12 months isn’t set in stone anyhow so if you wound up staying you would really wish you had taken it. Oh, and don’t buy a big domestic truck when you don’t need it and aren’t financially secure. Get an Accord or something for now and then when you’re out of school and working full time get a truck that you “want.”