Government, student loans?

[Gandtee]

Our unofficially adopted son, we have raised him since birth and approaching 15 will shortly he be finishing ME 3 and moving on to a new school where the fees are much higher. So far, we, my wife and I have paid for his education, but now we will be over stretched to meet the higher fees. His mother, a farmer whom he meets up with on special occasions has very little income and I am considering using her financial position to obtain a government loan. Has anyone experience or knowledge of obtaining a government loan for further education. His English language is excellent and his school exam marks show him at 3.75%. out of the top figure of 4. Any pointers and advice gratefully received.