I’ve recently had a similar dilemma. Got an old pompino with a carbon road fork with crap clearance, updated it with a kinesis pure CX fork, it has loads of clearance, mudguard eyelets and is all carbon. Has, however altered the geo substantially, the a-c is massive and the bike now feels like Danny hart’s downhill slack monster.
I was very tempted to get a cross-check or a paddy wagon too, but can’t seem to give up the pompino.