i found a burley on craigslist for under about 90-100 bucks, can't remember.

it's awesome.

i can't haul larger things, but the threshold where things get too long/big for me to carry is about the same as a car's...

i love it. i turned it over taking it home, i wasn't used to cornering in it.

i've not built one myself, but i have seen some pretty gnarly awesome home jobs, one or two claim to have a capacity of 200-300 lbs. and those cost somewhere around 50 bucks to make. from scratch.