What follows is what I came up with. It's not Perfect, but it's pretty good, and you'll enjoy having one if you decide to make it.
Best of all though, if you plow through these instructions, I try to pass on the confidence and basic know-how to design and make your own.
CHEAP (almost free), durable, lightweight, roomy, very dry, good star visibility, versatile, sets up easily, DIY pride and skills-building. It's one-of-a-kind I guess, uses very few new materials, and like all great human endeavors, materially registers my existence on earth.
DURABLE: It's overbuilt and performing like a champ so far in downpours, snow, high coastal and mountaintop winds, crappy terrain, etc.
LIGHTWEIGHT: the post office weighed it for me in the bag and it came out to something like 4 lbs--not bad for a 2-4 person tent!
I'd like a tent that blends in with the natural surroundings better, but I had no choice in this because the source tents were yellow and blue.
A con for some people might also be that my design uses guy lines and pegs, which you and your significant other will get into arguments over trying to set up, and then your drunk or stoned friends will trip over in the dark. For me though, these elements enrich the overall camping experience and were 'must haves'.