I just found this thread, so a bit out of date now with my reply, for anybody looking to big larger parts in chrome, I found a company called chrome illusion based in the Rainford area.
www.chromeillusion.comHe specialises in larger things, car retro parts, motorcycles and so on. I left him my parts, and waited for a number of weeks, the deal being he would put my small bits in the paint booth when he was doing a larger job. I had to do the prep, and mount them, in hindsight I wish I had taken more care with the prep, they need to be very good as the chrome will show up every blemish
The finish on metal parts such as aluminium bras etc was stunning. Its a paint, and a very expensive one at that, that he has developed. On plastics, it looked very good, a true chrome not just a shiny paint like halfords etc have. The plastic parts where not quite as good as the metal ones, but certainly passed as chrome
A true chrome finish is like the black smoke conundrum, very difficult to replicate, and the larger the item, the better it needs to be!