LOL. Maybe it scares you but, I'm already bored with it. After going to a few battles, I'm already disappointed with how stagnant and limited this hobby is. I'm investing my time and money into something the curmudgeons will hate but, will be much more accessible and fun.
So I thought I might have some progress on this topic. It looked like using a phone camera in panoramic mode might work. But when I experimented with the phone, I found that it didn't continue moving the picture when it got to blank space in the plans. Any ideas?
Maybe try putting some books along the fringe to give the camera something different to gauge off of?
View: https://www.amazon.com/IRIScan-Mouse-All-Portable-Scanning/dp/B00M77NBZK/ref=asc_df_B00M77NBZK/?tag=docjeeves-20&linkCode=df0&hvadid=241946711726&hvpos=1o4&hvnetw=g&hvrand=12177552016091036431&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9028705&hvtargid=pla-492469604765&psc=1 this should work well for you.
Up to A3 size, you'd have to stitch it together from there. Still, probably better than cell phone cameras.