It really does depeblnd on your cad skill level, but basically you would need to make a mounting setup to incorporate both. it is certainly doable, but tbh I would have a look at some cad files from existing setups, and what may be involved.

to be completeltly honest, it would likely be easier to use a Stealthburner mount for Ender 3, and build a Filametrix Stealthburner which incorporates the whole cutter and extruder into the toolhead, then just make some sort of mount for thr lever trigger. some probably already exist tbh!