Wessel baby flap neck chameleons can look very similar to baby veiled chameleons. You should tell your freind to only sell those babies when they are atleast 2 months old anyway, at that size they are really fragile.
The setup you are using sounds quite good for the chameleon and it should do well, make sure it stays nice and warm though and keep it well hydrated, mist it aswell as use the dripper.
Its still hard to tell if its a veiled or flap neck but in the first pic it looks like a veiled to me. Please try your best to post an even better quality picture. Releasing a veiled would be bad, just hang onto him and enjoy him. Ive already heard a story of an adult male veiled being caught from a garden in JHB, lets not pull a USA stunt here.