Hi, I have been following your posts, and first off, I am very impressed, it is all going to be a challenge but you appear up to it and best of luck. As a backup, feel free to PM me, if I am in REP, the town is small and at no time would I be 10minutes away from you. The gate for the departures is opposite the Thai airways lounges, so couldn't be more central, there is an escalator and lift to the lower floor where there will be a bus to take you to the plane, so not too much cabin baggage as you then have the stairs up to the plane. I was told once what the plane was, it is a small jet, narrow aisle. The arrivals have a bad habit of parking away from the International terminal in REp, maybe the plane's departure is from the domestic area, you will have a walk once you are down the stairs onto the tarmac, but there on in it is straight foward. There is a Bangkok airways lounge in Bangkok around the corner from Thai's but it has no shower. You will be well cared for in Cambodia, they are beautiful people