Burningman tickets for a virgin

A friend of mine wants to go to burningman for the first time, but she's a bit short on cash.  Is there anyone out there who has a $210, $225, or $250 ticket but is no longer planning on going and would be willing to sell it to her at cost?

Cheap and easy ray tracing?

I'm looking for some software that will let me easily simulate the path that light will take from a point light source through a multifaceted mirrored surface akin to a kaleidoscope. 

The software should preferably be free (or cheap) and easy to learn.   I have programming skills, but I'd prefer some quick modeling on a 3D software package to programming all the ray tracing from first principles.    I could use sophisticated optical modeling software like Zemax, but it has a huge learning curve and costs thousands of dollars. 

My goal is to simulate in software the infinite mirror boxes that I'm trying to build for burning man.  I can use the real world as my ray tracer, but that costs me about $5 per set of test conditions. 

Alternately, if any of you are well versed in such software and would like to help on the project, I'd love to collaborate.  You can get some idea of what the hell this project is about by looking at some of my old flickr pictures:

Street view across California

Google Street View has expanded and now covers the middle of nowhere, among other places.
Now you can get a ground view of the lonely mountain roads you might find yourself driving through. :-)
My roommate's car is parked outside my house.  I can't quite read his license plate but I can't tell if it's deliberately blurred.

The more I think about it, the more stunning this achievement is. 

This data would let you preview any drive you'd want to to in fast-forward, giving you a good memory of the route instantly as well as letting you preview the scenery along the way.  Thus you can decide whether to take the "scenic" route.  People will be able to tag and identify objects along the route.  You could mix in the Wikimapia data to automatically provide annotations of all the buildings and scenery along the way. 

There are 21,000 miles of road in the bay area alone.  Most of them are little roads that can only be (legally) driven at 25mph.  With stop signs and whatnot, it's more like 20mph.  So at 20mph that's about 1000 hours of driving to just cover the bay area.  Half a year of driving at 8 hours a day M-F.  Painful.  I don't even want to think about LA.  Oh wait, yes I do.   LA county (not the whole metro area) is another 20,000 miles.  The overall US is 3.8 Million miles.  190,000 hours.    That's 100 person-years of driving.   In the grand scheme of things, that's not *that* much work... I just don't want to be the one to do it!