Best way to 500 ton master NC

I hold a 100 ton master inland and a 200 ton mate NC, I want to get my 500 ton master NC the quickest way. What would be the best way? I know I have to get my A/B and Stcw. What are the other classes I need and What school did you all go to to get preped for the 500 ton test?

Thankyou for your response

might want to begin your '“quest” here…“click” below for “checklist” 500-1600 tn mate nc??

for the other checklists for AB and RFPNW see: