In reply to Dave Rone:
Hi,
Didn't see your post! For Bagn, Gol & Hemsedal I would suggest Gol. As you can find reasonable choices of accommodations. Hemsedal is expensive. Bagn / Stavadalen is about 1.5 hours from Gol. They generally have short walk in so your compensated for the drive.
Gudvangen / Lærdal etc, best find accom on that side. Aurland has been used quite a bit by Martin Moran so I would think he´s done the maths and thought it is a good location.
If you focusing on Vang / top end of Lærdal you could get accommodation in Filefjell / Tyin. Accommodation in Vang would be cheaper. You could stay in Fagernes and just drive to Bagn (45mins) or Hemsedal (1.5hours) and vang (1h).
In the future we will be renting out our annex (6-8 beds) but right now we are living in it while we renovate the main house. The dream is to renovate the barn to a bunk house type place. We are based between Vang and fagernes (Røn)