From what I can see, you've got a U-shaped bracket which the bearings a bolted to, and the direct-drive extruder sits inside the U. I can't see a way of connecting the E3D without some kind of adapter, or printing a whole new extruder.

I think the reason your old hot end was jamming so often was heat creep. There's a heat break there, but without active cooling, heat will just travel up, cause thermal expansion of the filament and jam it nice and solid. The E3D is definitely a great replacement.

Unfortunately, a quick search doesn't throw up anything useful.