Are you making your own oak barrels?
Most of the rural homes in this area have a scuppernong arbor.
They are typically rectangular with the wires around 7 feet off the ground. I would guess they average around 16 by 10 feet.
The prior owner of my place made one which pretty much looks like it was just a clothes line with two very heavy wires. Posts around 12 feet apart. It bears very heavily. Wires are around 4 ft. off the ground.
You use 14 Gage galvanized steel alloy on 500 foot spools. Use the “wire vice “ like you see here.https://www.midwestvineyardsupply.com/searchlist.asp?action=go
Live you dream an may God Bless.
I know that you can hire workers at 6 am, 9 am, noon and 5 pm and pay them all the same amount - a denarius. I have that on good authority.
This looks pretty good too, if growing wine grapes...
http://content.ces.ncsu.edu/north-carolina-winegrape-growers-guide/chapter-6-pruning-and-training
These are some of mine from a year ago. They are very sweet.
I’m in NC, there’s a smaller startup winery with vineyards nearby. They have the “T” posts with wires side by side. Seem to be doing reasonably well. But, wildlife also appears to be an issue. All manner of deterrents, silver streamers, netting. May want to consider this.
My uncle grew grapes in California. It was many years ago but the best I can recall, rows of grapes at heavy posts, trained along two very heavy wires strung between the posts.
I don’t recall the height of the wires but not too high since all the kids and cousins did the picking. Probably a little over five feet.
Not for the feint of heart ...take some courses
Some depends on the grape variety....that said a t cross with upper drape age helps develop ease of access so you can keep cluster size ideal for sugars
Call victor davis hanson. prof at hillsdale and historian. i think he grows grapes.
Not being pickey, mind you, but 7 vines is a garden not a vinyard. But it is a start.
If you’re interested in historical vineyards, this was written in 1769, describing details of NJ vineyard cultivation. Edward Antill won an award in 1767 for producing a wine equal in quality to that consumed in Great Britain.
http://www.iment.com/maida/familytree/antill/edwardgrapesarticle.htm
I learned a little bit, helping plow, working in the cuvier, helping with the barrels (turning, burning sulfur, etc.), and so on... and also some of the chemical processes from classes at the University of Bordeaux Oenology School.