Here’s the list for the 4EFE conversion from Charis Ioil (The guy from Greece who did the amazing for 4EFE turbo conversion).
cr9 hybrid turbo £333
Bracket sub assy oil filter 15677-11011 £?
Gasket for oil pan drain (oil sump) 12101-11100 £50
Housing water outlet 16333-11140 £?
Front intercooler (like Jap Speed Kit) £299
Glanza turbo power steering £106
PIGGYBACK e-manage Blue £190
Fuel pump with adjustable fuel pressure reg £88
Cooling radiator overhaul package £214
Honda Civic aluminum half radiator £300
Turbo exhaust manifold (4efte replica) £99
That answers a few questions.
looks like he's strapped the necessary turbo bits on and is using the emanage blue for fueling. This explains the low boost level. The hybrid ct9 isn't seeing it's full potential.
Few things of note.
A used ct9 is always a gamble, those chinese hybrids can be just as iffy. I can't help but think the £333 could cover most of a td04 kit..
The oil filter housing is getting harder to find. They are made of aluminum so the threads strip easy. If you find one make sure you ask about the thread condition.
That £50 gasket he has in the list is actually the oil sump. Getting painfully harder to find in an undamaged state. There's two types, looks like he's used the later one from a Glanza EP91. To rule problems out get the oil pickup with the sump when buying. That way if it turns out to be a early version you can still use it. You could always put the £50 to modding your existing sump of course.
Thermostat housing on the side of the head. Again, out of production and getting hard to find a good one. The steel coolant pipes on the back can rust through so be careful buying. If you were running a bigger turbo you shouldn't need to run coolant lines so can disregard this.
Front mount sounds about right.
A used 4EFTE PAS bracket and pump is needed as the 4EFE sits in the way.
Management - important decision best made with your tuner.
If running a low boost level like that I'd be happy enough with 4EFTE injectors and a high flow pump. These are cheap enough. No real need for the adjustable regulator tbh.
The radiator baffles me a little. These engine bays have a lot more room than the EP82 I'm dealing with and I've run stock radiators for a long time. For ct9 turbo there's not much need to change anything, a larger unit would necessitate a smaller 'half-rad' for clearance. You guys are in a hotter climate so if it were me I'd search for the cheapest Civic triple-row radiator on ebay and your mechanic should be able to fabricate the mounting brackets.
The exhaust manifold will dictate which turbo is used. Be careful of those cheap chinese CT9 units. I've seen them crack for fun. Hateful things to deal with. A used WEPR mani is a solid option or a stock Toyota one should handle low boost handy enough. Check any used units for cracks and welds, it's a minefield. If you picked up a cheap td04 it could make more sense to grab a manifold to suit that. Remember to get a downpipe to match the manifold, it will make the exhaust fabrication a lot easier.