Once they have settled in after a few days then I'd sit next to the cage, talking quietly to them, and just watch them. When they get confident enough to come out to eat yummy treats like carrots with yout there, then I would start handling them for five minutes a day, or twice a day. The after a few days, move it up to 10 minutes, and then up to 20 maybe after a couple of weeks. You can just sit them on your lap and rub them gently. Also, when you catch them, try to herd them into a corner and catch them quickly if you can, as it stressed them less. And try to hand feed them some treats. They mightn't take them from you if they're really nervous (my two girls still won't) but they might come over and grab them out of your hand like mine do! And if they won't eat from your hand, then after they've been on your lap and you put them back in the cage, give them a piece of carrot or something so they associate handling with getting a treat!
It might take some time, because they mightn't have been handled much at all before, but being indoors will help them get tame fast I'd say
They'll soon start associating you with food, so they'll love you!
I hope that is some help anyway, that's just what I did with my pigs that I got that were very nervous. But now they squeak at me loads, and run up for food. They still don't like being handled, but I chose to not start handling them and instead just give them lots of treats . . .
And when I sit in their run with them they'll run around me and climb over my legs and all, so that's good enough for me.