Hi,
To be honest, I prefer the S1 88" to all others ... I didn't/dont see the point in adding the "barrel sides" - you just have to find a wider gap top drive through. But hey, each to his own. Most of my new chassis rebuilds have been 88" S1 bodies on S3 running chassis.
I found RAF 80s (coz the only 80"s I have driven were either painted RAF blue or red (the crash tender at RAF Sharjah was an 80", and eventually caught fire. I had little to do with it). I found the cabs were too short for my short fat hairies, (Twenty-nine and a half inside leg) and brake and clutch knees moved vertically when operating those pedals. But hey, I wouldn't kick an 80" out of bed.
If you are looking for an 86", 88", 107" or 109" S1, you need to know about .
"the rivet".
The extra 2" was added between the back of the front wheel arch, and the bulk head, to accept the longer OHV diesel engine (2050cc?). That meant a longer front wing, but they retained the original strut. resulting in wheel arch being an extra 2" from rivet, Can anyone post pictures? Once you know what you are looking for, you should be able to differentiate between 86"/88"/ 107" and 109", at first glance, from 50 paces.
Frankly, I wouldn't want an 80" (although if I'd been offered a
basket case, for low bucks, when I was pondering on my aborted "small wheel" Cortina/MGB engined project .... perhaps I might have stretched Barbara's purse.
An 80" has a lot less driver leg-room than later S1s, and if you find an S2 cab is too short .....
I suggest that 80" should be left to fanatics with deep pockets. The brake master cylinder is mounted under the floor (three bolts), and I have vague memories of other differences ... something to do with a big hole in the drive's side chassis rail.
I would also wish to avoid a project with a 1600 or 1997cc OISE engine.
But hey, each to his own.
602 (Who prefers an S2/3 running chassis and S1 body with an aluminium radiator panel)