I'm not sure if the RAFAC is still delivering it centrally. I think a few wings sponsored the expensive SportsLeadersUK setup costs so they could deliver independantly of HQAC courses. But I'm not sure if many continue to do so.
Whilst CSLA offers a broad overview, you might find it more valuable to pursue sport specific NGBs. Some NGBs and community sports partnerships will sponsor coaches through their qualifications - or at least offer a bursary scheme.