I'm a PhD student studying cyber-security (aviation security in particular) and was recently approached by an avionics company who wants to hire me for advice based on my academic research. The most money I've ever earned before this is something like $25/hr in an internship. They're asking me to quote them my monthly rates and I'm worried about either under-quoting and looking unprofessional or over-charging and looking greedy. The company is European if that matters at all.How much do you all feel would be appropriate / non-presumptive to ask for as a student with high subject-expertise and low consultancy experience? Would something like $50/hr be crazy high or crazy low?