No update on the RC bucket right now as I don't really have anything new to show yet. I do however have some stuff on costing I did today which I think you will all find interesting.
So, first of all the cost of raw materials. So far this has only been card and glue (I could include printer ink, cutting board, craft knife, etc; but these are all things I had already) and the cost of these is £15.42 ($24.70).
Now, as I bought a pack of 250 sheets of card and I didn't use all of the glue it obviously didn't cost all of that to make the helmet. So, I've broken it down and for the 20 sheets of card I used and about 1/3 of the glue stick I have the total comes to £1.73 ($2.77) for the entire CP helmet. For a helmet that is wearable, that is a very good price, however this is also just a cardboard model right now. The costs will rise drastically once I begin building it up with fibreglass and car body filler. So far I have shopping list totalling £95.44 ($152.88) of things I will need, and even then that isn't a complete list as I will have to re-stock certain supplies (like glue and fibreglass) so the total cost will rise even more. Having said that, the 2 biggest expenses will be the airbrush kit and rotary tool kit which become more cost-effective the more armour I make, thus reducing the total cost per armour piece.
So, I think looking somewhere around the £100 ($160) mark is a reasonable assumption for the cost of a complete kit. I'll be sure to put an updated price up once I have finished so you all know roughly how much you'll need to invest should you decide to have a go yourselves.