Sure would. Merc and Yammie have tech’s travel the big walleye and bass circuits with their trailers. But they are dealing with just a relatively few models and years.
However wouldn’t it be cost prohibitive or very expensive at least if you had a marine tech travel to you and provide service with all of the diagnostic computer stuff and inventory that would be needed to get one moving again. Most dealers don’t stock every possible thing needed for repair on every possible motor brand, size and year that would be encountered.