Advice on dealing with in laws.

So I'm not going to go into detail why most of my husbands family isnt in our life anymore. We both felt they were a danger but overall he made the decision to cut them off. Now that being said it isnt all of them. His dad and brother just kinda got pinned in the middle by his mother, sister then SIL. I do not have alot of respect for either of them (again long story) but they arent bad people. They havent done anything that would make me feel like they would be a danger to our son. I'm due in February and we have been debating on just inviting the dad and brother to come to the hospital when he is born. I really want my husband to as this is his dad and brother. And I dont want to keep my son from them just because the females are bat shit crazy... I guess my question is what would the right way to go about asking them or giving them the invite to come up? It would just be them two from his side. No one else would be allowed due to the circumstances. I just want to help my husband in anyway I can as he is really nervous as well. And I want this to go smoothly and let them know that we want them in our sons life... I do struggle with sugar coating things. My husband likes to ask me for advice on how to word things but I tend to be to blunt etc and it can come off rude.. I just dont want to mess this up. Any advice would be appreciated. Sorry If this is really confusing. The overall question is. How would you ask/invite them to come to the hospital regarding the circumstances and it having to be just them? I am a FTM. All of this is new, I just dont want to be to over protective or be irrational etc.