Schrader Valve or Push-in?

Does anyone know where I might get one of the following on a Saturday for air suspension in and around Merseyside? Hopefully the main dealer will have the push-in fitting, but if not I'd like a plan B or my week off's goosed.

1/8" pipe straight schrader valve

or

5/32" straight push in fitting with 1/8" pipe thread.

Ta.

Halfords do the Schrader valves in their cycle section if that's any help

EDIT....only the inserts, and reading again, I'm guessing you're after a whole stem and valve.

In that case, I'd get on Google and see what quick-fit type garages might be open.......they will keep them and for a drink, you should be able to obtain one.