Interactive Bus Shelter Installation

I have been fortunate to have my dad, a toy designer and great creative mind, working on the Seeking Shelter art installation for the 2012 ZERO1 Biennial. Working from my conceptual sketch, he has designed a great roof framework made from PVC tubes and connectors. The walls of the shelter will be polygal upon which the public will add removable window decals designed by local youth.The pillars of the shelter will be cardboard concrete pour tubes. I am also hoping to integrate the use of Makedo  connectors and cardboard into the installation and related table activities at the ZERO1 Biennial event days in September. I am still dreaming of having a few of Monkey Wrench Design's tin can phones in this installation. (see the cans sitting on the yellow disk tables in sketch below). 12 more days to fund their project on Kickstarter!

My original bus station concept and rendering. The
zig-zag vertical walls are four 4' x8' x 1/4" corrugated plastic
translucent panels, polygal.

First scale model by David Okada. 1" = 1,' made of 5/8" wood dowels
and wire.Dowels are nailed and glued to the 'blueprint.'
Zig-zag panels are thick clear acetate sheet.

Initial laying out of full-sized PVC pipe roof -
on 'blueprint' on garage floor. Pipe is 1/2" ID PVC
irrigation pipe from Home Depot. Design by David Okada.

Full-sized roof (84"x 132" x 12") completed on positioning wood
stringers on blueprint. (Short roof cross-pieces and 18" radius corner
tubes were heat bent; long tubes were not. This roof design will use
only five support columns. Design by David Okada.

Connector reaming detail:

A. Top inset shows two drill attachments used. (1) is hole cutter (2) is sanding drum attachment
B. Lower  layout shows typical long axial tube with 'loose' reamed T and 'loose' reamed X connector slid on tube. Cross tubes for T and X connector positioned to indicate where they are inserted and glued into the unmodified joint openings.

Column support detail (Design by David Okada):
A. 8" diam.cardboard Sonotube with two wood interlocking
X-sections inserted at both ends and screwed: Bottom X  
made of 4x6 wood; upper X made from 2x4 wood and capped
with plywood disc. Both X-sections locked in position with wood
screws and finishing washers.
B. Bottom of tube assembly locked to 1" plywood floor from
underneath with countersunk 5/16"x5" lag bolts.
C. Plastic connector with 4 tubes is fastened to disc and the
upper 2x4 wood X section with four conduit clamps.
D. Shown extended wood channels for the 1/4" art panels to be
replaced by stock Home Depot mirror mounting steel channels.

Challenges in creating this installation:

1. It needs to be suggestive of a conceptual model (I don't want to imply that this design is the solution to the Seeking Shelter Design Challenge.) It is just an invitation to think about interactive/multipurpose bus shelters. The design of the shelter will invite people to add to it. It is a base structure to build upon.
2. It needs to be sturdy and stable! Many people will be leaning against it, putting decals on it and adding components to it. There will be a wii interactive surface set up on one of the walls in the evening. There will be some seating as well. I want this structure to last past the few festival days so that it can be used in other public contexts.
3. I need to transport and store this! I have only half a garage and no storage in our house. We are designing this thing to break down into smaller units and assemble on site. Still trying to figure out the transport...