Plastruct plastic rod.I began forming these ribs by inserting each one in boiling water till it softened a bit.I then pulled it out and wrapped around an appropriate sized dowel,holding it until it cooled.
In hindsight I should have used plastic rod that was the next size smaller.Oh,well.
LOL..Thank you Chris. I didn't realize it has already been a year.Due to life,my builds take way longer than they should.It doesn't help when I try to stuff the kit full of resin...