pretty the same with what I told sa machine shop, mga 3 to 4 days daw pagawa...
malaki talaga savings compared doon sa 8kva coleman genset, nasa 90k+++ yon at sobrang ingay dahil briggs & straton ang prime mover (15hp) parang sakay kami ng isang pump boat.
nasa province na ngayon yong coleman, di bale, sanay naman mga tao doon sa tunog ng pumpboat
please note that the average car/light truck engine is only supposed to go 4000 hours before overhaul. that's why dedicated gensets also have dedicated (and oversize) engines that turn at relatively low RPM's to extend their life.
if you use a vehicle engine for a genset, the engine won't last that long (e.g. at 10 hours a day, it will only last a year before needing an overhaul). vehicle engines aren't designed for prolonged continuous duty.