How many plants is a "patch"? I just purchased 100 plants to put in; I'm expecting a bit more than a pint or two a week for my efforts. Will probably put in another 100 next year. Did 500 a few years ago, but blundered. Never mix too fresh of compost in with the soil. Gone for 1 week of vacation & when I returned, the strawberry plants were completely overrun with weeds, and it was too big a project to afford the time for pulling all those weeds. Now, neat rows & a big backpack sprayer with 10% roundup are my friends.
Wow...you have quite the project going on there. My strawberry patch started from 5 plants 3 years ago planted in a rectangle shaped bed 5 feet by 15 feet. They spread via runners so I estimate I have between 30-40 plants today. I have had most success with the quinalt type of strawberry which is supposed to be ever bearing. I planted a variety of strawberries but the quinalt ones have been the most prolific, overpowered and killed the other strawberries, spread the furthest from home and produce normal sized sweet berries all season long to boot. I fertilize every 1 to 2 weeks with a fish emulsion based liquid fertilizer diluted with water.
I've found that trying to keep strawberries in a row is almost impossible. They are pretty invasive and want to spread out far beyond their original boundaries. If you dont want to weed, then you wont want to herd strawberries either, especially given the scale you intend to plant. I don't know of the effect of roundup on strawberries because I try to avoid chemicals like that. However, the surface area and semi-bushy nature of the leaves tends to shade and discourage most weeds where strawberry population is dense.
The first year the strawberries didnt produce many berries. We actually deadheaded them too by snipping off the flowers. We wanted the plants to establish themselves, grow good roots and survive the winter (we are in New Hampshire) instead of produce fruit. Year 2, the berry production was modest but nothing exciting and they continued to expand. This year, year 3 is the year that surprised us. The plants were the first to wake up from winter and had lush green growth and more runners with new plants in March! A month ago we started picking and picking and haven't stopped.