Bisbee is ... odd. Never been to that bike shop though; may have to check it out.
Lots of not-too-heavily-traveled 2-lane highways down in that SE corner of the state though (I grew up in Sierra Vista. Same general area.). Typically 5-8 degrees cooler than Tucson, which is typically 6-10 degrees cooler than Phoenix. So it'll take you longer to die from dehydration and/or heatstroke.
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A race bike in any era is a highly personal choice that at its "best" balances the requirements of fit, weight, handling, durability and cost tempered by the willingness to toss it and oneself down the pavement at considerable speed. ~Bandera