I had this lady call for me to come give her an etimate, I need some help. I went and checked it out and its around 1/2 - 3 acres of mowing and somewhere around 15 min - 2 hours of trimming and edging. Blowing off should take around 5 - 50 min give or take. I mow with an exmark. what should I bid? Nearly forgot, I use green trimmer line.