Some locations are tough to do a tour of either because of high overhead costs or lack of an extensive potential client base (or both, which without doing any research, Sundance strikes me as such). I've had a smattering of requests for Salt Lake City visits over the years, but never undertook since pretty much would necessitate a #FlyMeToYou commitment from requesting client.
Anyways, hope you find a fit for your desires while there.
xoxo
kacy