Leather shoes, casual sneakers (think Converse), sandals, slide-on canvas shoes, and wedges are all great options
Thats definitely a good place to start
Notice the subtle details that have been added to this suit, which only a bespoke tailor could offer: the exquisite laid-on braiding around the coats lapels and cuffs (the braid is vintage silk, kindly sourced for me by il maestro , Bob Bigg), the delicate bar tacks sewn by hand that reinforce the trouser pockets, and the fineness of the hand-sewn watch catch (the central buttonhole from where you fix your Albert chain)
Make sure to just add a little at a time
Definitely very cowgirl inspired, especially when you throw on some beaded bracelets
Thrift stores need to have sales like this to move merchandise faster