Hey way to go I think its a great plane , would Highly recommend a wing jig if ya have one .Do you have the build instructions with the plans even though they are quite vague. Yeah wooden cowl the only way for a scratch build mine looks a little crude but as I went it looked a little bit better . I will epoxy the inside along with some Glass cloth but that won't be until engine is fitted to the cowl. Here are some more pics of the cowl. Yup that is a glass cowl right beside last photo Its about 1/4" to narrow on each side at the firewall and not quite round enough . So I made a wooden one what do you think