tim check out the insurance first no 1 priority
they will ask you what qualifications you are going to require before letting out the boat ,
public liability lots of it safety equipment lots of it
factor in all the damge its going to get,
and how quick it will devalue.cost of replacing engine parts/sails and damage to topsides and so on.
how many realistic days/weeks of the year you can let it
how much are other companies on the broads charging(can you compete)
do you need licence for hire?
where will clients collect/leave boat
does it need an inland waterways/ safety certificate
how much for moorings
what rate of interest will folks charge
argghhhhhh dont do it unless 100% sure it's gonna make some money
its a hard game and short season and if clients damage the boat and its out of action you will lose bookings and money