Actually, got back on the road about three weeks ago but this is the first chance I've had to download some photos.
The brakes are now completely sorted - new drums and shoes all round, new rear cylinders and a brake fluid change, so it actually stops! Cooling system fully flushed, with the cabin heating stripped and re-built, and all working nicely - even in London rush-hour standing traffic, the temp gauge doesn't move above half way with the fan kicking in as it should. I still need to clean out the oil filter (doh, should have done that BEFORE I put in £20 quids worth of Duckhams 20W50) and do the valve clearances but otherwise all the oily bits are done.
It also looks a bit prettier than it did before - interior completely stripped out and cleaned up, non-original front seats and door cards changed over for genuine BIS items. The door cards came with a rather manky parcel shelf which had been cut for speakers, so I sprayed that up with grey vinyl paint and it came out pretty well, so now fitted with Blaupunkt speakers and a new old stock period Blaupunkt stereo. The only non-period items are the bee-sting aerial and clear front indicators but I reckon it looks pretty good. Still a few little jobs to do but its very nearly there.
But the big news is that it's now not my only 126 - I've also gone and bought Worm's brown aircooled, about which more to follow. The missus is however not impressed by my growing fleet, so the BIS may well be on the market once it's finished...