Hi, I'm building up this exact same model, same version - the Short Box. Will be following this closely. I'm still scraping off gridlines of the top of the saucer and waiting for new modelling putty to fill seams (I'm really starting to hate Testor's putting and trying some new ones, like Mr. Dissolved putty and Perfect Putty).
I am intending to get the new decals from Federation Models, any maybe a new B/C deck housing. I'm not planning on lighting it no matter how tempting.
One thing I noticed: there's a lot of "accurizing" parts out there, but I have seen several straight builds without them and was honestly amazed at how good they look without those parts. I'm torn if I'm doing that or not.
John A