Plenty of others are already doing the same kind of hires - you just need to know where to look. That means you need to be sure you can compete with them to make it worth your while as (a) they already have their own customer base, and (b) they usually have their own in-house engineers etc.
I recently did a small job for my parents who live just north of Liverpool - I live in Scotland 350 miles away, and didn't want to have to tow anything down. Their local tool hire place,Hodgsons in Ainsdale, just 10 miles from where they live, had everything I needed - and more. Tracked stump grinders, chippers, Avant (with flail etc) etc etc.