"bullet time" multi-camera photobooth questions

I'm going to post this over in studio and lighting as well as 3d/stereo photography to make sure I gather the right experience, but the DIY forum seemed like the best place to start for these.

Basically I'm planning building a multi-camera photobooth for some upcoming events like this http://gallery.a1array.com/rbmanyc/160514-064451

Have some questions on hardware and software:

1) cameras - considering the gif conversion will downgrade resolution, I'm thinking building this around a 12mp sensor like that in the canon XSi would be plenty. Also, the XSi was well reviewed when it was released about 8 years ago, and can be had for less than a hundred bucks each. Thoughts on this as a camera choice?

2) lens/focal length - I'm thinking 30-35mm would be the max I'd want to go in terms of width to balance between getting a decent amount of people in frame (about 4-6 max) and limiting wide angle distortion. I'll be using studio strobes and shooting at a low enough iso to keep the images nice and sharp so the kit 18-55 set on the wide end would be just about perfect with the 1.6 crop.

3) lighting - trying to decide between continuous vs strobe, but I'll likely stick with strobe because that's what I already own, and will allow a fast enough shutter speed to freeze movement at an acceptable shutter speed and aperture.

4) software - I think this will potentially be the hardest part. There's a company called Breeze Systems that makes software to both control multiple cameras (the XSi is one of the older supported cameras - which is partly why I chose it) as well as photobooth kiosk software that automatically generates animated gifs and creates links. I would rather use software that's pre-made and easily accessible rather than hiring someone to make it for me, but wondering if anyone has other recommendations?

Thanks all!