Yeah that's a jumbo bead, pop a small hole in that plug (don't remove the plug, just poke a small hole in it using a hammer/screwdriver, or welder's chipping hammer etc) and see if it still has the beads inside or if it's empty. They'll look like small light beige/grey bb's. On the 2 outside ones in the bottom row (toyota on the lh, nissan on the rh), can you take pics of those from the side please? not the top but the side, showing the seam. Each of those cats has 2 versions, with the fatter ones being classed as high-grade imports instead of small imports. It's about an extra $7 per cat around here. Not much, but every bit helps. As a bonus, it's been my experience that showing the buyer you know something about them most definitely helps what your material gets graded as. I can't say if that's the case with the place you linked, but it can't hurt to look more knowledgeable.
Those 2 GM breadloafs in the middle of the middle row are the very short breadloafs, so they should get you Large GM/short loaf grading instead of just regular breadloaf. AutoCore has the short loafs on their pricelist, so that's good.
Ok, so if I were grading these, it would be;
top row LH to RH; AC 4 dot, low domestic, domestic pre X 2, low-grade import (or possibly large cast, would have to see it), and jumbo bead
middle row LH to RH; Lg GM X 2, Lg GM/small breadloaf X 2, low domestic
bottom row LH to RH; small import (again, could possibly be the high-grade import, which I'm guessing is what AutoCore calls the "toyota fat" on their list), low domestic X 2, small import (or again, possibly high grade import)
One thing I will say is to make sure yourself of exactly how full these cats are before you take them somewhere to sell. Grab an old antenna off one of your scrappers, and dip every end (other than the bead cats, of course). You can often see the honeycomb inside just by looking down the pipe with a bright flashlight, but it's easy to miss seeing that a cat is burnt down a 1/2 inch that way, or something similar. Depending on the buyer and the cat, that 1/2" might cost you a good chunk of $$. And again, it gets back to looking knowledgeable about what you have. If you show up to sell someone some cats, and 1/4 of them or more are empty, he's going to think you're either A) an idiot, or B) a scammer.
Good luck Cory.