The Bike (later AHI) helmet is still the original padding that I used to play in back in the 80's and 90's, just spray painted it white to look better.
The Riddell M155 is a bit older, in fact my first helmet that I got as my birthday present back in 1984. Travelled down to the nearest shop in London from Cambridge with my Mum, I can't quite explain how excited I was! Of course I got the nearest face cage to what Dickerson wore too. Unfortunately the padding in this helmet didn't last as well. Some of the fluid filled cells had started leaking and a couple of the air cells popped. So stupidly just through all the padding out!! plonker!!
I've not been able to find replacement M155 padding or a reasonably priced one to cannibalise, but I found the padding from a VSR4 fitted as the inflation points are pretty much identical.
I'm on the look out for both an old M155 and a Pac3 (foam) padding helmet, but not much going and the shipping costs from the USA to UK are often more than the item!!
Do you fancy making one yourself MamaRAMa? Here's a good website
helmetaddict.com