Ive heard of places that custom make throttle cables. When I did my conversion I was lucky enough to find that the 3F cable was only 10mm too long for the 1HZ,but it worked.
I dont think I am getting the full of throttle off the pump and have the proper one I got off a wreck sitting there waiting .
However it would have been simple for someone with the right tools to make one.
In your case a cable from a canadian LHD HJ60 should fit right in.
For your glow plugs there are simple relays available or you can use the old ignition wire that went to the coil and use it to glow the plugs.
I dont have a timer,i just count to 10 quickly on a cold morning and hit the starter.
I think you may need the HJ60 radiator to get the hoses on the correct side.
From memory the 2,3F radiator is a opposite of the 2H.
The temp guage and oil pressure should be a straight plug in with some wiring extension.
I would suggset you keep it all 12v