If you buy from one of the Portsmouth mob there is no duty to pay. their high shipping charges are to cover VAT and import duty and they don't see why they should have to pay ebay fees on this, tax on tax. If they say it ship in 2 to 3 days it does.
I have bought a laser cutter off them. They do have support but it China based and useless, all they want to do is give you the run around so you sort your own problems out.

Control box you have to build or get someone to build it, not saying the original one is going to blow up straight away but they don't have a good track record. You could always start off with what they send , stuff a big fan on the box and see how it goes.
Not sure if the spindle comes pre wired or they leave that to you ?

If you wnat out the box the original choice might be better but again support looks an issue and you are not close to any other members are you ?