Thanks for posting those. Very nice.
Any plans for a heater or top? I can post pics of the traditional heater setup but I don't think it would be worth the effort; basically an mg/triumph heater box with no controls, just open ended, on it's side, sucking from the tunnel above trans then dumping into the foot wells with no defrost or dash vents. No remote controls, just a faucet knob on the back of the engine for open or closed. Much better off with either a diy blow thru or one for a kit or actual caterham.
I have some pics of the original top system. Basically a tube that forms the B pillar is hinged above the coilover, bent to match the rear body curve and lay on top. The second tube hinges off the first about 3 inches above the main tube. The second tube lays inboard of the first with the same curvature. Fabric straps rivet to the tubes and run between the main and secondary tubes and from the secondary down to the rear body to set the angles, which are about 45deg forward of vertical for the secondary is 90deg to the main. There are seven snaps around the windscreen with the outboard snaps a couple inches below the row. The fabric top is three pieces. This topic may provide some ideas:
viewtopic.php?f=23&t=6451
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Miata UBJ: ES-2074R('70s maz pickup)
Ford IFS
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360LA 442E: 134.5x46x15
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