I would get an old AB 206 A for around $150k and it will be reliable and cost v little to run as AB spares are dirt cheap . ( I should know as i have a hangar full !!) This will be a lot cheaper than a Bell and a lot of people reckon they are better built as well . I also had a 3B1 47 a beautiful machine which i used for spraying . Has the advantage that you can have engine quit at 10 ft and you can still climb away , dump your load ( chemical i mean ..) and land safely !!!!!