$800 seems way to high as the 4cyl is not terrible to change the belt on.
You have much skinnier arms then I do. The problem I had with my wifes 4-cylinder Accords was access. There were places I had to loosen a bolt…I couldn’t even get my fore-arm into. Those transverse mounted engines are just a pain to work on.
My pathfinders - Piece of Cake. While the timing belt technically was much more complicated then the Honda…But everything was easy to get to. The hardest part was removing the radiator.