Saw you the other night on Special Stage on YouTube. Looked good! Shame there wasn't more footage.
13X8's?? You'll need muscles like Superman....!!
The car we are about to re-build had 13 x 8s originally. We are not sure whether we will go with 13 x 8 or 13 x 7, but will probably use something unmentionable on this site to help the arms