I would questionng doing a spider, when both GW and Otherworld already do giant spiders, and it appears to have limited appeal - aside from the cool factor, not many will need it, let alone mpre than one. Also, it's another 'big' project which lots of posters have already questioned. However, you sounded pretty stoked about scultping it, and omo, that is the surest way to success. If you are doing stuff you hate, not only is it almost not worth doing, but is more likely to end in failure.