NEW hydro bags are NLA, they have not been made by Dunlop for yonks.
However there are piles of S/H ones about from people putting rubber cones on. Most Mini places (eg Northern Mini Parts) have a pile, so go pick some good ones whilst you can.
Cooper S ones were firmer, good luck you might find some- but if fitting shocks up front I don't think it matters much after 35 years.

On the S ones the rubber cone part at top is about 10mm? closer to the metal ring of the displacer than all the others.
They were colour coded back then, but good luck finding any marks now...
Mine has Cooper S/Clubby GT ones up front, Chong's has Mini Ks. Both have front shocks & comp rear bumpstops now and ride is very similar.
_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.
