Any idea from where or who?
Sure! One of the three:
(has the cheapest prices and great selection, but highest shipping to AK ($13.99 + 19.99 Alaska surcharge). Split by two, it's not as bad, especially when buying 10+ plants. Or, if split by three
This is where I got most of my plants from: selection smaller, prices quite a bit higher, but shipping is only flat $11.89.
Another looked promising: http://shop.plantedaquariumscentral.com/
They calculate shipping by weight/quantity, but still - the more is ordered, the better deal it becomes.
I am sort of running out of time... and, the weather is not getting any warmer