Might want to consider waiting for non-reference VEGA designs to start showing up (in theory later this month per some "prelimanary" announcements but no solid announcements yet that I've seen) if you're worried about cooling.
Are non-reference going to be cheaper? Right now the cheapest Vega 56 I can get is around 450 euros (tax included).
Where in the world did you get that price??? Please share the wisdom on here