I don't see a problem with the redwood and vinyl netting.
However, how big is your garden? Have you tried square-foot gardening? It really gives you a lot of bang for your buck, and you could actually raise your planting surface up on a platform with potting soil and eliminate your gopher problem.
The 3- to 4-foot raise sure makes it easier on your back and legs as well. Less bending, fewer weeds, and better soil.
For more information:
Read Polly Osborne's Q&A "Can you suggest an alternative to pressure-treated wood for garden borders and raised planters?"