Radiant heat

[tuffun]

I recently removed a radiant heater from my kitchen.
I drained the system, removed it and plugged the holes for the
pipes for it in the main stem from the boiler.

So the system is now closed again,but with no water in it atm.

? is - I'm waiting for some Autobleeders from a friend,but
he said they won't be in for at least a few months.

So should I wait for the parts to come in, or refill the system now?

I'm thinking it would be better to refill it and drain it again later but ....
then again I'm no plumber .....