Electric 1200 Coupe from NZ
http://www.youtube.com/watch?v=E4rWpKeUDT4

My coupe.

I've used Mitsubishi FTO seats. A bit sporty but very comfortable. Mine are in a coupe, but I've also seen photos of them in a ute (here). Cost $250 from a wrecker, worth every penny.
They did require custom mounts though...

For the outcome you're looking for I'd say the bonnet lining would be a good solution. If you want to control outside noise it's the most logical option. Theoretically the lining should retain the heat from the engine bay, and hopefully not transfer that heat through to the bonnet.

The problem with a car like a Datsun is there are many sources (ie holes/gaps) where the noise will come through into the cabin. Think about all those holes in the firewall and gearbox area, even wheel wells produce a large amount of noise. In modern day cars they spend huge amounts of money on putting as much acoustic treatment inside the vehicle as possible to minimise road noise getting in. Noise wasn't a high priority in the 1970s.

Whilst the bonnet lining may reduce some of the noise, I highly doubt it will have a significant impact in reducing the noise in the cabin. Sound behaves like water, if there is a gap, it'll get through. You'd need to start plugging every single hole.

But I may be wrong, I'd happily eat my words if it's successful :)

Hey guys,
I need to get some seats installed in my coupe and I believe it will require custom mounts. I'm also looking at perhaps moving my fuel pump. Can anyone recommend a good and reasonably priced fabricator in Sydney?

That's a steal for what it is. Unfortunately it is definitely a buyer's market right now, best of luck with the sale.

kyolive is a spam poster. The mods keep deleting their memberships but they just sign up to the website under a new name and spam 10-15 posts at once. Difficult to stop, easier to ignore.

BMW Stud Pattern

They've got different stud patterns