Hi Jenna and welcome to the world of gardening!!
Tara told me to watch out for frantic activity once you got started, and I see you have made a good start
My sister has a very nice Japanese maple in her rockery. She is building a new conservatory, and the rockey and its contents have to go, and Ive offered to give it a nice new home. See photo of that little treasure below.
BTW That little sentinel of a conifer might make its way here as well.
Our members love planbt ID questions if yoiu have any. Lets see if anyone can remind me of the name of that golden delight
I'm planning to move it in a couple of weeks time.
Its a weeping variety with finely dissected purple leaves. I think it will be OK at that time, as the leaves are now in autumn colour and will be fallling off gradually.
The other suitable time to try transplanting is very early spriing, well before they burst into leaf - perhaps at small (leaf) bud time or before.
How big (height and sread) are yours? What colour were the leaves before autumn colour? Are they dissectum or palmatum (five pointed leaves?
Heres what a palmatum looks like:
Heres a photo of my sisters (aka my new) dissectum: