There is one more about your post on ebay:
Originally Posted by
IceCage
you just need some silicon hoses and uprated fuel pressure regulator (power boost valve) which are not supplied.This conversion kit is rated to around 100hp
It's def. not 100 bhp, more like 75-80 bhp, which has been confirmed by rolling road tests on 60 bhp endura-e. There is even no IC.
Questions about compactibility: which engine version do you have? 50/60/70 bhp one?
Which air filter is supplied?
No dump valve?
Why exactly do you think that fuel pressure valve needs replacement?
I read that turbo in fact reduces pressure valve needs, as pressure difference btw fuel rail and open bore is greater (mind that gass is evacuated with higher pressure as well) then it was without turbo.
As long as timing of fuel injectior is well synchronized with valve cycle (so it sprays only if valves are opened, not closed). Which goes back to the chip

What type of chip is it? Have you seen the maps? Is there any chance to reprogram it (adjust it)?
I read that Van Aaken actualy installed the turbo and chips in their garage or with use of partners, so I bet they did some test and tunig to fit to exactly one car only. So dropping the kit elsewhere may be an issue, we may get knocking etc. Maybe it can be treated by ECU reset and few self-adjustment runs, but I doubt it.
No dump valve?
So to sum: old GT15 turbo is like 100 GBP(brand new costed me 196 GBP), chip may be priceless, mainfold can be done for 150 GBP on Ka (I saw D.Y.I one for 300 USD, but I can have snail-type welded by pro guy here, I can have it done for 75 GBP, but it will take time and care and dozen of calls to get it), if it's used few years it may be priceless too (burned and crispy) and air filter is priceless (65 GBP new Green cone with heatshield and ducts, sale off)
Oil feed lines may have some value.
Honestly I'd give you 200-250 GBP for this I bet well used kit. It really doesn't matter how much you paid for it.