Help pricing parts

[AGAR]

Hi guys,

I'm posting this on behalf of a friend who doesn't use the forum. Looking to confirm rough pricing for the following please:

1. Set of four standard Escort Cosworth wheels, just refurbed, complete with 3D printed centre caps. He is thinking £800 for them - is that reasonable?
2. Used T38 package; inc turbo, L8 ECU with launch control & anti-lag
3. Used Siemens 83 injectors
4. Air injectors

Cheers,

Rich