EMBARK Route 015 connects MWC with downtown OKC- and Rose State is one of the stops served. The problem you'll probably encounter is that the timing may not be favorable for you- OK isn't known for stellar transit options.

Edit to add: you might look into converting that new SS into a IGH if you find yourself struggling.

ETA 2: You might want to double check with EMBARK on the weight capacity of their bike racks. That Sun Atlas looks to be a hefty critter and might be too heavy...