Hi fiend,
This is a great idea - the glass house mountains make excellent places to see sunrises/sunsets!
Really any of them can be climbed for this purpose, although Beerwah and Tibrogargan are significantly more difficult than the others. Many serious injuries have occurred on these two mountains as they are popular with folks who don't normally climb mountains. In fact, I just read that a climber fell to his death on Tibro this morning:
http://www.brisbanetimes.com.au/queensl ... m7i39.html. Would suggest if you try Beerwah or Tibro that you are good with heights and have done some rock climbing before. Definitely avoid in the wet.
Mt Ngungun, Mt Beerburrum and Wild Horse Mountain are all easy with constructed tracks to the summit. If you haven't done any summit walks before they might be a good place to start with. I can personally vouch for Mt Elimbah as a great sunset spot (
http://sirkingchampionmunch.blogspot.co ... eback.html) and although there is no formed track it is an easy and short walk through open bush. Also, there is no signage but there are at least two obvious tracks leading to the summit of Mt Tibberoowuccum, which also has nice views. Haven't done the others but from my understanding they are possible despite having no formed tracks. Really you can't go wrong, pick any two and enjoy the views!
Cheers,
Munch