Just do Chaos Dwarfs, that's what I'm doing . Chaos Dwarfs have always been the army that you had to work to get built up on the fringes of support, so this changes nothing. Unless you're planning on attending any GW events, most indy events already said legacy will be allowed and the general community sentiment seems to be just treat them as any other army.
If it's models you're worried about, you could always Chaos-ify some Dwarfs or get some 3rd party if you don't want to source the minis. I'm a Chorf lover, and I'm lucky in that I already had an existing 6th edition and Azgorh army I've built up from official models over the years, so I know I'm an outlier but there's plenty of other options available until the AoS Chorfs come out.