Spitfire Mk3 Restoration - Where to start?

[Haltamer]

My Dad's first car is in the garage - A Triumph Mk3, Late 1969, 1293cc, with a fair few miles and a bit of classic modding too - Unfortunately, he stopped running it up somewhere around 1980, and with a flat roof that failed for a few years, a touch of surface rust has gotten to the car in the engine bay etc - Generally looks like it could do with an aggressive wire brush!



I've prodded, poked and peered at the floor panels, arches and the likes and can't see anything immediately terrifying in corrosion terms, which is reassuring - The tyres still hold air (Inner tubes -They have been flat for 40 years though, so I don't think they'll be going very far...)!

Now;
The interior could do with some love, which as part of restoration I'd like to completely strip and "Restomod" with some sound deadening?

Brakes are still single circuit - Will want to sort that out with a dual circuit system before putting it anywhere near the road.

Fuel system, hoses etc; Will need draining and refilling with fresh fuel of course, but likely thinking it'd want a fuel tank replacement given 40 years of sitting, and replacement of all rubber hoses.

Clutch (And transmission?) were replaced just before storage too, but it's likely seized to the flywheel.

Bodywork is relatively sound - It did get a respray prior to "storage", but there is pitting and some rusty patches peeling up at the arches (Just surface rust under the paint - Not properly flaking or anything) - A respray would be nice, but let's sort out the basics first.

I think it's around 180,000 Miles, but the drivetrain is something of a ship of theseus - It does have airhorns, kenlow fan and an electronic ignition setup of some kind.

I've got a few notes from my dad - I'll see if he has any more information, but:
1x 1 1/2" Carb
Herald 80 rear Diff and halfshafts / brake hub modifications?

All very puzzling and scattered - But the fundamental question - Where do I start?

I'm relatively mechanically competent, and happy to deal with most things myself. Heavier lifting, welding and the likes (I'd love a body-off-frame, full strip and powdercoat etc. but again - find somewhere to start!) are more of a challenge.

If I could get it turning over, that would be a start I'd imagine?

[Haltamer]

some bloke said:

It's more inspiring if it runs than if it's a pile of parts in the garage.

Think that's probably the best initial idea! seeing it tick would be nice, and if I blow the engine up in the attempt I can always put a K20 in instead

[Haltamer]

That's a fun list!

I did have a peer inside the cylinder head via the oil filler and things did look greasy inside, rather than crusty, impressively - I'm sure that might change once the head is off though.

I know the engine had been replaced not too long before the storage, so it's not quite the full 100+K worth, I think(?) It may have also been slightly storage prepared - One can hope!