Mechanic Job in Calgary, Alberta

Hello! I am part of a grassroots community project that is transforming a school bus into a mobile tiny sustainable home, aimed at offering immersive experiences into nature for the Calgary community. Last summer was our first tour and it went really well, however at the end we started experiencing some minor engine stalling with the bus. We are suspect of either the injectors, fuel pump, or a loose boost hose/clamp. It runs fine being light on the pedal and through the city, but stalls under load or on long highway drives. We have our summer tour starting in three weeks and would love to have this sorted out before we go. If you are able to help please let me know. Our project is volunteer organized and funded so we have some dollars to draw from if you would like to be paid. Any help is appreciated! Thank you!