I have also finished my rope corset, I used the excellent online corset pattern generator at the Elizabethan Costume website to create my pattern and followed the instructions on how to put it together, its a brilliant resource.
This is my first corset attempt and I decided to use rope rather than cable ties for boning as it is for an italian renaissance gown where the line is much softer than the later English and Spanish styles. I used the tutorial Everything you ever wanted to know about boning with hemp cord, but were afraid to ask! that is also found on Festive Attyre. I couldn't find hemp rope in any of our local hardware stores, not even the large one in Penrith, so I used sisal instead, I have no idea if it is as firm as hemp, but it seems to work. The sisal is quite hairy so I hope the fibres don't work through the corset fabric and prickle, I will only know with wear, but so far its very comfortable, much nicer than a bra, I'm tempted to wear it to work. .
The corset is all made from recycled resources, except for the sisal rope. The fabric is moleskin left over from dress making that was still in my stash and its very sturdy and strong, the ribbon binding came from the local second hand shop, it is petersham ribbon, very good quality and very old, looks like its from the '50's! I didn't have enough of the green so I used the white as well, so its my Suffragette corset because green, white and purple were the colours of the Women's Social and Political Union, led by Emmeline Pankhurst.
Its laced using Festive Attyre's spiral lacing method, Zen of Spiral Lacing I still have to sew over the metal eyelets.