I finally found time today to do this job so that I could Danish oil the floor. The following relates to a 2005 Roadster, but I guess most are similar.
First job is to take the roof down.........

Then remove the cap over the seatbelt bracket and take the bolt out. Make a note of it's position.

The seat is held by six bolts. The first two go through the crossmember and are 8cm over the heads. The second pair, also in front of the seat itself are 7.3cm and go through the wooden floor. The third pair are at the rear of the runners and go through the crossmember level with the front of the leaf spring. These are 9.25cm over the heads. All appear to be AF with 1/2" heads.
The carpet was a mess...........(Drivers side).....

It was held down with half a dozen tacks, I bet they do that so that it doesn't move while they drill the holes. I've pulled the tacks out, because.........
They are tacky...
The floor is in good shape and was treated to two coats of Danish oil. (I did all the rest on an earlier thread).

Here's the side view of the wooden batterns. I assumed they would be of uniform thickness but no........

They taper front to rear from 4cm to 2.5cm and it's very obvious here....

Newer Morgans don't have these batterns, and it's easy to assume that the seats are lower, but I would need to check the frame....it might be different. If the seats are the same then on later cars the seat base will not tilt back so much if it's bolted to the flat floor.
Either way, you can modify the seat height fairly easily to suit you if you're not happy.
The next two pictures show how two holes were drilled in the wrong place for the gearbox remote bracket - they were too far forward.


Fortunately you can get at the bolt heads here.......(Centre of picture)...

I filled the holes with JB Weld and used some penny washers underneath. Much tidier.

Carpet back in. I've blown the wood over with a bit of black paint.

More to follow.............>>>>>