Advice on moving to Denmark

Hi, me and my wife have the opportunity to move to Fano, but we have some questions and obstacles that is hard to find the best answers to. We have friends that live in Fano who can provide a rented accommodation that we can live in, but our biggest problem is my wife is disabled enough to claim benefits here in the UK, as i have to look after her needs, what we are trying to find out is knowing we can can claim our benefits in Denmark but for how long we don't know. We also don't know if we would get enough to live on for our daily living costs, and enough for the rental side. My wife gets DLA and income related ESA and i get Carers allowance. What we need to know is because of Brexit, would we get asked to leave when the UK leaves the EU, and it comes down to Denmark possibly looking after our monetary position, there is the possibility that i could do some part-time work, going on the proviso that all is ok where would we stand on healthcare, dentists etc.