here is the post w/ the modified 4 wvga wm sms skin.
xda-developers - View Single Post - [SKIN SMS][06 Feb 10 UPDATE!]Beautify your standard WM SMS Thread! [All Res][WM6.1+]
seems you would need to install win7 skin on 1st post the overwrite files in zip found on linked post. this skin seems to also fix double scroll bar issue and all is optimized 4 our screen size. 2nd post of this thread explains process, also if you look at the same page as linked post he gives a quick dirty step by step.
although this skin would not color match to your rom maybe it wouldnt be hard to change the color of the bubbles to match 4 your rom? this mod/skin, matched, would look right on point. i also have not tested this skin but will if you would like and also would try an help you out w/ modding/testing it.
also i was thinking bout the cht softkeys...the backround for the softkeys would look good in a "3d glass" w/ the icons sitting on top like effect. similar to the froyo style dock backround. as 4 the icons, im not sure what skin/icons would look good but....everytime i see you 1st post or skin/backround on the rom i always think surfing/wood (against your overall blue style), and the beach. maybe its just me, maybe im missing home agian, hawaii, and this rom and how it skinned gives me a reminder of the great state of 808!