@andy6915 -- From what I've seen, the modder is super accommodating and has been making modifications when people have requested changes. The arms are a separate mesh. If you wanted the bulky body, but slimmer arms, you can mix and match. This picture is a good example:
http://www.nexusmods...tion/mods/605/?

And Eggplant is right, there's barely any dwarf modding going on right now. And the surprising thing is that when there ARE mods that get put out for dwarves, those modders get flack from unhappy dwarves and it discourages them from wanting to make any more for a race that they don't even play in the first place. Couple examples below. There have been more, but I don't remember where else I've seen them:
Really tempted to remove the dwarves modded hair after getting a couple of anonymous hate mail for it 
I know there are some issues with both of them. No need to remind me that they are shitty.
I don’t hate dwarves either.
Both were difficult to convert and adjust to their head shape.
I will work on it and update the files when I have time but now… I don’t know if I should even bother.
http://milabanilla.t...ves-modded-hair
Anonymous whispered:
There's a better ponytail hair mod than yours. And it has dwarf version that looks nice too. Sucks to be you, huh?
Now I remember why I turned off anonymous in the first place.
I didn’t know modding was a ****** competition. I’m still a novice in the modding community.
Are you the same person who called me a dwarf hater?
If you don’t like my mods, don’t use it.
This **** ain’t cool. Leave me alone.
http://milabanilla.t...-than-yours-and