Snow Country in Rochester is probably the best shop in western New York. they do excellent boot fitting on site, and also have good relations with an orthodics doctor in the area who also does ski boot fittings. Go to snow country first and let them know what you want and then they will refer you to the boot fitter or fit you on premisis. They are the only shop i go to when i need very strange or technical work done on my skis and boots.
go to www.snowcountrysports.com
to find directions. Its really easy to find - take 90 to 390 to 590north and get off at your second exit and take a right, when you see Wegmans, snow country is right in that plaza behind barnes and noble.