Those are some good ideas there Curbside Prophet.
I myself am owned by two mini dachshunds Odie and Sweetie.
1. Just keep in mind that some dachshunds can be very stubbron about house training. You could use those puppy pads or the litter box. Mine didn't go for the puppy pads they always chewed them up.
2. You can get a ex-pen for her to stay in while you are gone. I wouldn't put her outside by her self. My two dachshunds are diggers, they couldn't be trusted in a yard by there selves.
3. I would look into a training class.
4. I crated mine until they know they routine of the house. But know the sleep in bed with me under the covers. Mine will even stay in bed with me as long as I'll stay in bed.
5. You shouldn't scolded. Dachshunds carry their hearts on their shoulders, just keep that in mind. I would use positive reinforcement when it comes to that.
6. Well as for getting along. That depends on the dogs. If both dogs have a dominate disposition than you will have trouble. But if one has dominate disposition and the other one has submissive disposition than you wouldn't have trouble. But the better of the deal is if both are submissive. My male dachshund dosen't get along with my male german shepherd but he is great around my females now for my female dachshund she will tolerate the other dogs to a point.
7. I agree with Curbside Prophet on the greeting area. Not that I didn't agree with them before.
8. Just keep in mind that dachshund can be chewers even if they are bored or not and some of them can be pack rats. They tend to go to one person in the house hold. And they should be socialized.
If you have anymore question please ask away.
Here are my two mini dachsunds.
Odie
Sweetie
Here they are sun bathing together
