deejaybainbridge wrote:My potential list is as follows.
Doomshaper,
Runebearer.
Mulg The ancient.
Dire troll Bomber
Dire troll Mawler.
Scattergunner Unit
Warriors Unit.
So, Good? Bad? Am I Crazy? comments would be welcome.
Doomshaper (either version) and Mulg are best friends, so this makes sense

. Mulg is also a beat stick, and hasn't ever really been a "bad" choice for me.
Scattergunners are a little hard to use, but are not unusable. However, I wouldn't recommend them for starting out.
Kriel Warriors are good but expensive $$$-wise. Have you considered Fennblades?
The Bomber really likes being in a list with an Impaler... without one, I'm not sure about his inclusion here.
The Mauler is a solid choice and can make Mulg hit insanely hard.
Here's a guide to what units have synergy with him:
http://www.trollbloodscrum.com/2010/08/old-doomshaper-troll-that-deals-out.html
However, I might consider a different warlock to start with. I really recommend building your list around a warlock, so the most important thing is to first choose the warlock. This is generally considered to be one of our weaker / situational warlocks (great against Hordes, not very good against Warmachine... so a poor "all comers" caster).
You can check out guides to other warlocks here:
http://www.trollbloodscrum.com/p/tactics-guides-strategies.html
If you do decide to stick with this warlock... surprisingly, there's a list not too disimilar to what you're suggesting posted up there. However, I've never seen/heard of anything like this so I can't vouch for it either way. It's a bit crazy! But uses a lot of the models you listed.
http://www.trollbloodscrum.com/2010/08/old-doomshaper-troll-that-deals-out_08.html
He says scattergunners work well under pDoomshaper under fortune, so they may be more viable in his lists than others. This list was written a few years ago, so now those 2 points would likely go to either Scattergunner
UA or Fennblades
UA (unit attachment, like an officer that you purchase for them separately).