I did a little more over the last 2 nights. I opened up the reefer unit's grille. I just need to put some mesh behind it.
A little touch up paint and weathering is all that's left for the undercarriage.
I added an exhaust pipe to the reefer unit.
It's about 95% complete, so here are some pix of it on temporary display. All that's left, as stated earlier, is touch up painting and some more weathering.