I can find pictures of 2liter bottles and red solo cups being used, but I want a site that has the dimensions and size of the pvc pipes being used. Hopefully somebody on this site has seen a website similar to what I'm searching for

You're thinking NFT. People do it in 4" PVC. I like 6" green sewer pipe better. Square fence post rails also work very well. They sell net pots in many sizes, 3.5" is good for peppers. You will want a smaller pump, probably a mag drive; the sump pump you have will make the reservoir too hot when run constantly. Pump the water into a spray line with holes every few inches. I like 1/2" CPVC for the spray line and hole made from a 1/8th" drill bit. The water will enter the line and pee down every 6-8" or so, ideally between each plant site. Then it flows down the pipe and returns to the reservoir. You can make a drain pipe that lets you adjust the water level within each pipe.

NFT will not work that well for peppers. THey get too big. The scorpion Butch T I grew this year had a canopy of about 25 sq.ft. and a huge root ball.

Try either DWC, drip system in dutch buckets or a flood and drain table.

I believe this is the site you're after.
If I'm not mistaken, the sites author used to partake of this forum.