Thanks everyone for the replies! I guess I might as well bite the bullet and get a proper silnylon fly. I'll be strictly backpacking so the weight would be an issue in the long run.
I was considering a MacCat but I should probably stick with WB to save on shipping. Its looking like a Mamajamba for me then!
Are there any miscellaneous parts that I'll need to get it all rigged up once I have the WBBB and Mamajamba? I imagine it should all be included (maybe minus some stakes?). There aren't many outdoors shops around here so it might take some searching.