For the bulk of the project, I'm planning on relying on 123D Catch, for a couple of reasons.
First, it's free, and I need to keep my costs down. While it's true that high-end 3D scanning equipment can get more accurate results, that equipment is also expensive. 123D Catch is free "photogrammetry" software that analyses regular digital photographs of an object and reconstructs a 3D wire-frame model of the object. I'll be taking many hundreds of photos of each sculpture, from all angles, and using Catch to process them into 3D models. (For a more detailed description of my workflow routine, see here: http://bit.ly/147rhEz )
Second, I know how to use 123D Catch. I have captured very nice models, even under some poor conditions, with it. So I expect better than average results in the near-ideal setting of the Skulpturhalle. Take a look at the quality of results I've been able to produce with Catch here: http://www.thingiverse.com/CosmoWenman/collections/3d-scans-by-cosmo-wenman
Third, I want to focus on using the least expensive consumer-grade stuff in order to demonstrate what the average user can do. Hi-tech labs and well endowed museums have been using very high-end scanning equipment for a long time, making 3D models for their own use, in-house. That's nothing new. But improvements in inexpensive, consumer-grade solutions is where the action is right now. Growth in that market segment and demonstrations of what it can do are going to be what drives people's expectations about what kind of models museums should be *publishing* on their own.
This project is a continuation of the work I've been doing for the last year, completely on my own, doing -- how shall I call them -- "unauthorized" scans in museums. There is no way I could have wandered the Getty, the Louvre, the Tate, or the British Museum, while using a laser scanner for more than a few minutes before being "invited" to leave. To me, the popularization of consumer-grade scanning capabilities, particularly camera-based tech, is really what is exciting right now. I suspect that it will be a force for change in the very near future. It's what I want to promote because I think it will help break the dam, and help persuade museums to *publish* their own high quality scans.
All that said, if my project is well received and well funded (fingers crossed), and I can really take my time in the Skulpturhalle, I am planning on inviting/soliciting higher-end scanning equipment companies to either loan me equipment, or send a small team to join me for a day or two so they can demo their own equipment and add their scans to my project's output. I'd try to make it a group effort and product demo opportunity for them, and produce more scans for publication. I'm already in touch with a few.
I will also be publishing all the original photographs, so anyone will be free to run them through any other photogrammetry software they want to try, now or in the future.