We stayed at WL 2 weeks ago and had similar reservations at AKL - Boma, ours were 7:40PM. My wife and I wanted to get to AKL early to spend time animal watching so we left WL 5:45PM on bus to the MK, 5 minute ride then switched to AKL bus, waited about 5 minutes then about 20 minutes to the Lodge for a total time of 30 minutes! Very easy and from the MK my wife and I and one other family were the only people on the bus. Try it.