@sj4963073 - Scam for sure - prices are outrageous for a mutt with no health testing...and there is no responsible health testing for these mixed breeds as each breed has their own health issues. Don't be fooled by this...
training it (potty train, learning commands such as sit, no etc or remembering their names)
-from my experience it i harder to tach them so you really need to practice them few time in a day.
Removing it from its litter? Will it have separation anxiety?
-yes they would. 1st month would be difficult but after that they will feel more relaxed.
Will they be comfortable settling in a new home?
-it would take obviously but just be patient and always notice them for them to easily love you!