If I get some ASAP will it be too late? On other threads they say it is.
This is quite possible but I would have thought you will get some.
As things stand you are not going to get any.
Personally I would give it a go on the old proviso........ ..
nothing ventured nothing gained.And getting your bulbs from a supermarket is certainly the cheapest option.
I would have thought you would get back as much as you put in. By the way only sow the biggest cloves ........eat the rest!
What you might find is that the cloves won't split, they need frost for this, and who is to say that we won't get any??
At the end of the day the choice is yours!
Best of luck