So I thought I'd give an update on what I've been doing.
The car came with way too much oil, that was way dirtier than normal. When I put the car up to drain it, I found oil all over the bottom of the engine, dripping into the splash tray. I've since replaced it with the right amount and cleaned up everything I could. After driving like that for a week there are no leaks to be found

The idle was terrible, on start up and when sitting in neutral. The car never stalled, but came close. When I went to mania to pick up oil and spark plugs David adjusted it for me, and I left with the advice to change my spark plugs and if that didn't work, to look at changing the injectors.
Found oil in the spark plug wells and all over the bottom of the ignition leads.

Cleaned it off the leads with WD40, used a clean cloth and screwdriver to get into the wells and hoped for the best. I've been keeping an eye on them and I haven't found oil in them since, but will probably change the seals for peace of mind.
Spark plugs explained the idle. . . (You can't see in the pic, but the threads were coated in oil.)

I had read that a bad AFM could affect the idle as well, so I decided to have a look inside to see if there was anything obvious. I found a lot of white gunk.

I cleaned it up with brake cleaner and a cotton bud, probably not the best way but it's all I thought of at the time

Also saw that the head that moves along the carbon strip has left deep grooves on the strip. I had a go at moving it up so it would have better contact but couldn't without feeling I was going to break something. I guess this means I'll be replacing it some time soon? For now I've just resealed it and put it back. . .
Also removed the soft top and back speakers (which didn't actually work). Went from this:

To this:

So much room for activities!
And replaced the door sills from these:

To these:

So the car is looking a little more presentable, and the idle has improved a lot. However, it's now not starting very well. The car just keeps cranking, if I accelerate it helps, although the idle still dips very low and fluctuates on start up for maybe 10 seconds.
Tomorrow I'll be cleaning the throttle body in the hope that helps with my starting issues. Also going to be doing the gearbox and diff oils which I picked up from the supercheap sale today
