Electrician that also has some knowledge with automotive electrical as

I have a shuttle bus I am converting and could use some help with the electrical stuff. I already ran all the wiring for the outlets/lights into the rear cargo area as well as all the 12v wiring too. I will also be hooking up a mini split inside the bus. I would like to have it set up with a large battery bank that can be charged when bus is running and from shore power hook up. I’ll also have a generator on the back that can run everything, as well as charging the battery bank. I would like to help here and there as it goes to make sure I know how everything is hooked up and runs just in case anything ever goes wrong in the future while away from home. If this is something you could assist me let me know! I’m in the Denver, PA area. Look forward to hearing from you!