Loving the gluelam ideas... For those of you who want to see steaming in action, there's a clip part way through the following quirky TV programme from the UK.
http://www.channel4.com/programmes/george-clarkes-amazing-spaces/4od#3437072
It's the bit where they visit a guy building a suspended tree house.
Also, check out the neat homemade clamps they use to hold the steamed timber in the jig - this would work for gluelam too I bet...
ps....... hope this link works OK for you guys and isnt restricted to UK as it's a UK TV programme.
By the way, the presenter George is also commissioning the rebuild of what we call a mobile home - which is actually a NON MOVING large scale travel trailer. They are doing some lovelly birch ply work building sleeping pods etc inside the trailer.
cheers