Just caught up with this thread, my apologies for not doing so earlier. A good read it was too.
You certainly roped a fair bit of stuff there mind. A very profitable day indeed. Good luck getting the bouncing bombs(142,143 and 144s) cleared. Took me a dogs age and even when I did, it took me months to realise the last one I'd needed, I'd actually seen yonks ago

As someone has said, theyre scattered all over, I've seen a Heaton 142 in just about every corner of the Northern territory. If you come hunting for them in the North East, a Tyne and Tees Day Ranger, will help rattle a fair few them off. Theres usually at least 2, sometimes 4, parked up in the bays on an evening at Darlington and you can collar a fair few in Newcastle, most days.
It took 2 fairly lengthy sessions at Cardiff just to rope in the welsh 142s, fortunately all the 143s used to reside in my neck of the woods at one point and Heaton kindly renumbered them, before deciding they'd had enough of them and got rid. Meaning I don't need to go looking for them, talk about dodging a bullet. A Freedom of the South West Rover may just be the ticket to hunt out those 143s though.