Reinforce the legs, and unless you want to add it to the list of things to take care of, worry about while a tropical storm/hurricane is on it's way to your house, put it into concrete footers (easy enough to do. You need instructions, give a yell, I'll send them). You didn't mention the cultural conditions of the area it's to be in. If full sun, consider Cypress vine. It's an annual, will reseed itself for the next year (plant it once, it keeps on going). Delicate looking foliage but a tough little vine. Foliage looks cut lacy ferny. Blooms are small trumpet shaped VIVID crimson flowers that attract every Sulphur Butterfly and Hummingbird for miles around. (There are pink and white forms- not as common, or as effective). Those small blooms are visible from across the yard.
Make sure there's good air movement around the trellis so spider mites or whitefly won't be a problem. Add compost to the planting site and plant your seeds. Keep them moist until they germinate. After they're up they don't require much in the way of care. Maybe some fertilizer every once in awhile. I'd recommend a slow-release granular with as many micros as possible.
Any stray volunteers next year are easy to pull-can be transplanted somewhere else, given away... When it dies out and goes brown at the end of the year it's incredibly easy to pull off any structure it's on.
Seed packets can be purchased from any number of seed sources. Many can be accessed through DG.
