Inclination is the key, because whilst you suggest that low-cost launch providers have preferred inclinations, then so do the end-users - the space missions that need to refuel. Changing inclination is expensive in fuel (and hence also in time, hardware, weight, and mission complexity). It is avoided when possible.

So the FIRST step is to set-up a series of launch facilities with a common (low) inclination. Right now, many of the potential players can't access low-inclination launch bases. Until this is sorted out, the idea remains a dream (but EVERY idea starts as a dream. Some make it to reality...)