I've been thinking of building my own after running my Chinese gen during our ice storm last month. Lights in the house kept flaring occasionally & it burned out a ballast in my ceiling fan light & fried my motion sensor for the porch light. Luckily nothing overly expensive .... like my buddy who had a borrowed gen fry his fridge computer, a TV & a transformer for his furnace (no heat -- which was the sole purpose for hooking the gen up to begin with!
I could run a head off my lawn tractor, but there's no pto, & I have no idea how I could find out which pulley ratios would yield the correct rpm's, along with how to rig it all up. I just don't have time to be fabricating & ordering parts & waiting. It would be so much easier to buy a Honda, but $4K is ALOT OF $$$