635 & Preston is definitely close to 635 & 35: only 5 minutes or so away. Read the stickies at the top of this Asian Spa section, and about the spas in Ampville (7th Heaven, Smile, etc.). For sure you'll get what you're looking for, and its a sure bet for a good time (table shower, full hour experience, wonderful girls). The massage therapy places outside of Ampville really are just body massage with sometimes a good ending and not the full service good time you'd find in Ampville.
Google the place you select so you'll have directions to it. Read some reviews of the girls (or ask in this forum) so you can maybe make an appointment and see someone you'd like. Of course, this presumes you'll have a car to get from Preston to Ampville.