I don't know about 2K scanners but here's a list of facilities in the world that can do s8->HD. I think that s8 telecined to D6 Voodoo should be good enough?
Shadow facilities that have a Super-8 Gate include:
VRT in Brussels Brussels, Belgium
Ware House (aka Digtial Film Labs) in Copenhagen, Denmark
Photo Cinema in Rome, Italy
Technicolor in New York
Modern VideoFilm in Burbank, CA.
Flying Spot in Seattle, WA
Spirit facilities that have a Super-8 Gate include:
On Line Video, Zurich
The Farm, London
Prime Focus, London
VTR, London
Lab O Scene, Rio De Janiero
The Film Unit, New Zealand
Library of Congress, U.S.
Telson, Madrid
Taken from Shooting 8mm