Grad-level statistics study partner

I'm working through Richard McElreath's Statistical Rethinking with forays into related articles, including but not limited to material about Gaussian processes and the Stan manual, which is mostly above my head. I'm looking for a paid study partner who would be willing to review lists of questions I compile and then provide estimates of what he would charge to answer my questions. This would be piecework (Word files with questions). I cannot pay an hourly fee. You **must** have a strong personal interest in Gaussian processes and Bayesian modeling. This project is unlikely to interest anyone who is not already highly motivated to study this material. But if you need to master this material for your own technical enrichment anyway, I'd be happy to pay you to allow me to accompany you in your study provided you answer my written questions. A very high level of English is also required. You must be able to explain very difficult statistical concepts in clear English.