Nigerian Girl In Love With Ghanian, More Info In Details Please Read

I am an Owu girl. in case you are not Egba you may not know what Owu is etc. Anyways, I am in love and dating a Ghanian. I think he loves me too because the other day he asked me to marry him but I said "what" so many times, he thought I did not want to. Nways my question is What can I expect from a Ghanaian guy if I were to marry him. Any girls with similar experience?  Also , he makes soooooo much more money than I do, but I have a better education than him. I am pursuing a masters. His English worries me. I love him, but My family is soo highly educated, that me with my masters degree is the least degree anyone for three generations in my family is getting. I mean MY grandad had a masters and he set up the first meteriological station in Eket Nigeria. So what do I do? I am afraid of taking him home to mom and pop in case they think he is not educated. He is so sweet. He has class. A good head on his shoulders. Smart Funny, crazy and ambitious. owns his own bussiness and his own house. Yet, I am afraid. Cos he's a Mechanic. not  like Nigerian Mechanic though. He has people working for him and all that. what do I do. I am scared of facing my parents with him. Yet I love him and think its time to introduce him.