Guess I’m already getting impatient but I want this to be a solid clover and grains spot I just moved in last fall and I want to do this right and not struggle for years to come....
That is a disease we all suffer from. I would not frost seed and expect good results. Frost seeding clover can be great for filling in bare spots in a clover field, but it is not an ideal way to establish a perennial clover field. As hard as it is to restrain your impatience, I would. I would first focus on dealing with the existing grass. We do frequent controlled burns in our clear-cuts and pines and they can be scary. Burning fields is not. Disc a good fire break around the field. Wait for good conditions with the right wind and humidity. Use a backing fire. Have a couple buddies with rakes for safety and you will be fine. If you have tall plants like warm season grasses (you don't from the pics) flames can get quite high. If you are not comfortable with that, mow first. Fire can be a great tool, but like most tools if you don't do your homework and learn how to use it properly, it can do some damate.
Whether you use fire, gly, or some combination, I would first deal with the grass issue. I would plant a summer smother crop as well like buckwheat or sunn hemp (or a combination). I've used them to help when I had a problematic weed. In your case with a grass being the issue, I probably would use buckwheat as the N from the sunn hemp would stimulate the grass. Then in the fall you will have still another opportunity to spray any remaining grass before T&M clover with a WR nurse crop. I find this the best way to establish clover. The following spring, mow the WR back to 6"-8" each time it gets tall enough to shade out the clover.
Keep in mind that while it may be another year or so before you get your perennial clover field but each step along the way provides good deer food.
If you are talking about an annual clover small grain rotation, the clover will be the smother crop as annual clover is much faster to germinate, but, like sunn hemp, it will fix N which grass loves. You might still want to spend the spring killing the grass and use buckwheat that first summer. It germinates best in warm soil and is a short duration crop. Because it breaks down so quickly releasing nutrients when mowed, it is ideal to T&M into.
Thanks,
Jack