The trees will have no problem coming here, but they don't make very good bonsai.
You will not need to acclimate them. They are entirely hardy in the No.Va area. Roots can freeze, but need protection from the worst (below 25 F) cold.
It would be more of a concern if your were moving them to Texas--As a rule, Japanese maples are only marginally hardy the further south you go. Even here in Va., some Japanese maple types in landscapes are sun scalded by mid-July. "Bloodgood" is only one of a handful of Japanese maple cultivars that can handle the heat and sun in the deep south.
Here in Va. you will need to ensure their roots are protected and they're out of the winter winds. Cold wind will induce dieback in twiggier growth on these. I would find a sheltered, shady spot in your yard, put the pots on bricks, mulch them to their trunks and leave them alone this winter.
Bloodgood tends to grow in a lanky manner that looks clumsy is small and medium sized bonsai. They don't ramify well and most are growing on extremely ugly grafted root stock. They also tend to "bleed" profusely when pruned the spring.