Reply to TP 2/2.5 setup options

hi. im a user of traktor pro 2 and i guess like many other will likely upgrade to 2.5 when the time comes given its a free upgrade. currently using some old midi controllers to do internal mixing but keen on making the setup more elaborate.

there seems to be some decent used A&H gear in the market presumably because of the DB4/2. i am considering the following options and wanted to know if you guys had anything to say -

xone 42 + soundcard + either the kontrol f1 or the a&h k2 when they come out
xone 4d

anything else i should be believeing about?

thanks!