No worries Stone , If I had the money, I probably would have saved the energy! In my younger days when I was racing sprint cars, most of the other teams were buying parts off of the shelf, while I was building my own. Always preferred to do it myself when I can.
One of those is only $30, if you don't have that, how can you buy film? Haha but seriously what a nice design! Yours is unique so that's worth more than $100 if you sold it.