OK I would be up for this. Many of our traders have to buy parts which they modify to request and offer on a new for old basis. The initial outlay is covered by the sales price over time.
I am not going to buy a new set of lights and send them to you then when returned send you the original ones. not worth the hassle.
Surely, if your product is worth the price and you have enough feedback to indicate it is, its worth buying a couple of sets of UK spec lights to kick start the sales.
Once a few members have fitted the lights you will get positive feedback and the system will run well.