Re: lightweight dolly

I would just rent a dolly for the specific times I needed it. If there are no rentals like that available where you are, I suggest the Cinekinetic dolly products line. You can get the whole rig, or just the wheels and trucks, and build the rest from local materials.

Lots of of folks these days have dropped dollies in favor of steadicams of one flavor or another, because they are more flexible in use. Trick there is not everybody is good at using them, and they tend to OVER-use them, and cheap is no bargain if it doesn't really work.