Hello Dolly! [UPDATE]

[UPDATE] I've put together a short test shoot using the dolly. Still working out a few kinks but overall feels great on the tracks - check it out here: https://vimeo.com/40275905

After numerous trips to Home Depot, sessions of furious re-engineering, and the occasional bout of exasperated hair-pulling, I have finally created my long-awaited tripod dolly!

Ingredients include nothing more than:
1) PVC pipe and joints
2) 3 PVC caps
3) 12 rollerblade wheels with bearings
4) 90-degree slotted aluminum brackets
5) nuts, washers, and bolts

A test shoot is coming soon! For now, I hope these photos will suffice...