Nominal

Blue windows in gassers is a thing @Gasser

Just buy the curved set at the cheapest place then weld a bit of angle iron across the front and back so that don't do that ^^^ Then cross your fingers and push.

There's nothing in the LVVTA standard https://www.lvvta.org.nz/documents/standards/LVVTA_STD_Wheels_&_Tyres.pdf about locating rings so you should be fine.

I didn't need them when getting a cert.

They will all be similarly crappy.

Won't it need some rust repair now after being out in the rain?

Got spiders? I doubt that a swap to a Toyota or Nissan chassis will fly as mod-prod. The example in the sheet you linked if for an in-brand swap. See here for example http://lvvta.proboards.com/thread/541/modified-scratch-built-chassis

Depends what you want. Bits of old cars and washing machines etc can be used for hacking around, but you have to clean of the paint etc first. I've bought full sheets from Steel and Tube in the past, but you need something to cut them up. The zintec / electogalv coated steel stores better as it doesn't rust but again needs to be cleaned off before welding. https://steelandtube.co.nz/catalogues/steel-product-guide Last time I needed some I went to a sheet metal fabrication place and bought some smaller pieces (e.g. under 1m2) in different gauges. They were happy to help. You probably want 18g ~ 1.2mm for car panel work.

I've had good luck using the Dorman catalog (pdf https://www.dormanproducts.com/flipbook/dorman/automotive-hardware/2006-automotive-hardware.pdf) Find the stud then look up the application by part number.

It's a bit lame when factory parts don't meet the certifiers requests.

Well, lets see from the experts, @KKtrips may have an opinion

I'd be a bit surprised if that would pass a cert check. Usually welding in the steering assembly is discouraged.

Only Nissan RB Barries could talk about oil pumps for 379 pages!

It depends on when it was first registered in NZ: - before 1 January 1991 -> No rears required - between 1 January 1991 to 31 March 2002 -> Rears required - after 1 April 2002 -> No rears required https://vehicleinspection.nzta.govt.nz/virms/in-service-wof-and-cof/general/vehicle-interior/seatbelts-and-seatbelt-anchorages

I've done that Nissan swap on my Morris Minor, pretty easy and haven't touched it for 15 years since. I don't know if the Hillman version of the Lucas dizzy has the same external dimensions though.

@Mourning Cupcake I'll there so long as on-call activities don't go pear-shaped.

More a shake off than a shake down?

Been doing rusty screws this way lately

Weld a bolt to it, heat will help loosen it up.

Yeah, nah

Just so long as they don't own a Mitsubishi j/k Come along.

Could possibly fail under the '50mm' rule, but you'll probably be OK if you clean it up first. https://vehicleinspection.nzta.govt.nz/virms/in-service-wof-and-cof/general/vehicle-structure/structure-incl2.-frontal-impact