Based on your color criteria, it sounds like you want either walnut with some sapwood. Or maybe cherry. I'm not sure if you can get exactly what you're looking for without some coloring... The downside is that walnut and cherry can be a little pricey. Where to NOT buy wood: Home Depot, Lowes, Menards, et al. Too damn pricey. Where you SHOULD buy wood: find a hardwood lumber yard. Good chance you won't even find them online. YellowPages to the rescue. This is highly dependent on where you live. What state? Cost: Cherry, walnut, and other nice woods are a little expensive. Also, you're typically not buying boards. You're buying board-feet, which is volume. 12"x12"x1" = 1 bf. I prefer to compute the volume in inches and then divide by 144 to turn that into BF. Thicker wood is typically sold at a higher cost per bf, just because it's harder to dry, store, and generally handle that thin stuff. Assuming 78" x 40" table top and 2" thick, that would give you about 44 BF. Buy some extra to let you line up your glue up for a better, more pleasing grain match. Plus there's always waste. So maybe 50-55 BF. Why 2" thick? Obviously, you can adjust this down to suit a style. I prefer to get thicker wood and plane to thickness. Plus rough sawn stuff always finishes a few sixteenths thinner. I'd personally buy 8/4 for most dining tables. So then 55 BF of 8/4. My preferred lumber yard has that at $9.35 for walnut, $4.95 for cherry. Walnut blows your budget ($514 before tax) and cherry is right on target ($272.) Next, I would not do pocket holes. Not for a dining table. Really, not for any kind of table. I would strongly recommend using mortise and tenon for the frame. All you need, beside some careful layout and measuring, is a chisel and mallet for the mortise and a saw for the tenon. As you probably don't have excellent mortise chisels, it might be easier to drill out most of the waste and then clean up with chisels. But it's really up to you. And finally, don't screw the top to the frame. If you do this, the top will expand and contract with seasonal changes and destroy itself. You need to let the top move as it wants to. There exist fasteners that allow this. Or you can make cabinet makers buttons. More on reddit.com

Round is the way to go for this space and you can still found one with leaves. I got mine 3 years ago from Ashley Furniture. Go into the store because they’ll knock a few hundred dollars off. I would like it but it’s counter height. You have an absolutely gorgeous home! More on reddit.com

Looks really clean. Any pics of it from underneath? Any particular reason you ran the boards across the width instead of down the length? Nice work,. thanks for sharing More on reddit.com

There are sellers on Ebay, Etsy and usually Craigslist and similar for people who custom make them. Search for Amish furniture. More on reddit.com