One O guage store in Phx. area. , Arizona Train depot. Steve Palmer owner. 755 E McKellips Mesa az.( lucky you , Mesa) 480-833-9486. I have been to Coronado Models, the brothers own and operate it but not much ot see. I believe they are into narrow guage O.Might be able to find them on net.
The Mccormic rail park Indian bend rd. and Scottsdale rd. Nice place to hang for picnic on an operating day(google map as you might be able to see live steam layout. ). Winter the best for this and lucky you as it is your summer. Steve sometimes I will find him at the tracks on the UP mainline running from Gila Bend to Maricopa. The only knoll to sit on in 50 miles either direction. There is a nice sweeping rising curve and he will have his radio on to UP's frequency to pick up where the trains are and how many wheel sets they have. Fun day. I guess you can call Steve when you are here andfind out if he is going to visit the tracks.
Any questions e mail, psn0ball@aol.com It is a zero not an Oh.