As an aspiring mechanic myself, I'm not convinced by the wooden or aluminium siding. It looks a little too American for my taste. My 1.6 boasts a near perfect hood/bonnet and the air filter pan needs no upgrade as seen. Also my lights work as intended.
However, I do like the defogger mod. It always seems that the passenger side demists first. I have a length of foil tubing and will give it a go, but will direct both outputs into one in front of my driving position. I may paint the tubing black so as not to make things too obvious.