Trellising would be labor intensive at first, but would make future harvesting a lot easier, and more productive.
The time spent
once to
trellis would pay huge dividends in years to come.
Trellised vines could be easily managed, such as pruning, which should result in healthier plants (better ventilation and sunlight exposure), which should result in better production. The benefits to harvesting will quickly show that the initial time spent trellising was time well spent.