I have a question about weeds. I got a job that required approx 8 hrs of weeding, now before I tell her my $65 an hour price I had an idea. I went and got a BIG torch and propane tank, It was $100 this thing shoots a 1 foot flame and burns weeds till there is NO MORE. I was thinking of charging $75 it should take around 45 mins to an hour. What do ya'll think of this idea?