I looked into my tables and measurements and thought these might not be so bad:
Compas 180 SUIT
Dominant Solo (downtuned)
Obligato Solo (downtuned)
Innovation Braided Solo (set name is 140S, the highest string was aluminium wound, but a chromsteel wound version does exist too, so ask for it if you would like to order the full set).
All are bowable, the Compas needs some training but might work similarly to bowing naked gut. Pizz is great and powerful, but I couldn't adjust my poor bowing to them and still don't have a G string for this set.
The Dominant has the risk of breaking (but since you do not go up to the intended tension maybe not too much). If you have hard break angles of the string you should round them a bit more before trying the Dominants.
The Obligatos may roll.
The Innovation Braided have a similar stretch factor to naked gut and my orchestral tuning set has a bit more tension on the E than on the A which might help with a weak E. A bit soft for pizz, but works if you plug at the end of the fingerboard.
Evah Pirazzi Solo H for the A and Evah Pirazzi Weich for the E might work too, but might be a bit too much tension for you. Usually the A is stronger than the E, so if you take both from the same set you might get a weak E.
You might have commented to some of these strings before, but I cannot remember and don't like to read through all that again.
Maybe that helps.
Compas 180 and Innovation Braided might become a bit more smooth by rubbing softly with finest steel wool along the string.
But all of these strings are flatwound with a different degree of polishing.
If you like to stay with gut strings you can try Efrano. They are really affordable (at least here in Germany). They have set with wound E and A (Elite) and wound E only and different thickness ranges. I let my set to Hervé Jeanne currently and cannot have a look if they are flatwound or roundwound, but I think they are rather roundwound (which is no problem for me). But for pizz the E has a rather short sustain. Too short for my taste. They are nice with the bow.