I would be interested in doing prey model, but would really need some help in that department

Would anyone be able to give me an example menu for the week for him? He's only 20lbs, and could stand to GAIN a pound or two, but that's also not too important, he's a little hunk the weight he is now

I just really wanna do it right and help him, so I could use some serious guidance.
For a 20lb dog, raw is not nearly as space or time consuming as it is for most of us on here. When i was feeding my 20lb Corgi raw, the first couple months I actually did it out of a cooler because of my living situation. I promise you, it's MUCH more simple than you think it is, and you probably already know a lot more than you realize.
The first two weeks, you'll want to start with JUST chicken, bone-inclusive. Drumsticks, thighs, and wings are all acceptable cuts for this size dog. I am on a budget as a small business owner, and I opt for quarters, and just take a minute to cut the thigh and drumstick into two pieces, only because it's a cheaper cut. Now, I feed twice a day, and being only 20lbs, half a pound per day is all it should take to maintain a healthy weight, but each dog is different, so that may go up or down slightly, but that's a good starting point.
Here's an idea of how I feed my 20 lb dog raw:
Two meals per day, one is always bone-inclusive chicken.
Monday: Cut off of pork roast, boneless. AM, chicken thigh PM
Tuesday: Whole Sardines (2) AM, Chicken drumstick PM
Wednesday: chunk cut from beef brisket, boneless AM, Chicken thigh PM
Thursday: Pork Heart AM, Chicken Drumstick PM
Friday: Lamb Breast AM, Chicken Thigh PM
Saturday: Turkey AM (boneless or bone-in depending on the cut) Chicken drumstick PM
Sunday: Half a Tilapia AM, Chicken thigh PM
Each day I also feed a chicken liver, and a small chunk of beef kidney, except for on days I feed heart or whole fish, but that's something you won't need to bother with for about two months into feeding raw. This is just an EXAMPLE menu, it doesn't need to be all scheduled and planned, just feed a variety of parts from a variety of animals, some bone-inclusive, some not, and you'll be fine. Mostly meat, some bone, some organ, the more variety the better. We feed goat, elk, venison, buffalo, and other novelty sources when we can get our hands on them. Some feed a whole meal of organs every week, others feed small amounts daily.
ALL that being said, ALL you have to worry about for two weeks, is Chicken. That's it. We'll be here to answer any questions that you come across, but taking it one step at a time is the best way to not get totally overwhelmed, and in time, you'll see how simple it is, and you'll find yourself simplifying your routine even more. I went from weighing and labeling every single meal, and planning which days they eat which food, and now, I just eyeball some hunks of meat, and throw them in a bin.