RE: Working with Balsa Sheet
There are some print shops that do large format printing like banners, etc. that could scan your plans and then transfer (print) them on the media of your choice, i.e. balsa. But first you need to find a shop that will copy/scan the plans. A mom and pop shop is probably best, the large corpoare outlets will probably pitch a fit about copying plans without written consent from the designer and I'm not sure of the expense.
It may be more cost effective to just have a kit cutter do all the work.
Or just get a copy made of the plans and cut the copy up into templates and temporarily mount the templates on the balsa with a little spray of glue or something of the nature. I'm using this method for my 27% Skybolt and I like it.