I like it!  Especially the screwing down part. 
I wouldn't know the cost of it, but you could go to any company that wraps vehicles and easily have vinyl(?) sheet if whatever pattern you want installed on it if the get tired of it. 
Roman 

> On Jun 17, 2017, at 06:51, Roy Nicholl <RNicholl@NBNET.NB.CA> wrote:
> 
> Alistair,
> 
> I must admit, I found the bumper obsession a much more alluring and useful tour ;-)
> 
>> On 17-Jun-2017, at 00:36, Alistair Bell <albell@SHAW.CA> wrote:
>> 
>> Yeah, so much wrong with this idea but still...
>> 
>> I had the material, and it really couldn't use it ( 2024-t5 aluminum ) for anything else so I made a door card.
>> 
>> Still has to be covered with some sort of fabric. 
>> 
>> https://shufti.blog/2017/06/16/vanagon-the-aluminum-obsession-continues-sliding-door-card/
>> 
>> Alistair