Salaam. Does he speak english fluently? It all depends on how deep the lessons he need are (how long has he been Muslim? does he know the very basic things? does he need 2 start from scratch?) What caught my attention is "he's on a budget"....we have 2 be able to assist those people...not everyone can afford to pay for online stuff; at the same time, those who teach online are in need of financial support. I remember seeing that "seekers guidance" has an option for people who need financial aid. Does he not have access to someone in his city/neighborhood? Does he need 2 study texts or just to have access to someone to ask questions on a regular basis? Try seekers guidance and if u don't get what u need there, let me know in shaa Allah, I will see what the most appropriate way to assist is (on teaching/replying 2 questions). May Allah make it easy.