I asked my local maltster about what he might have that's an equivalent to CaraPils. I told him it's for head retention and is also called Dextrine malt. He sent me two data sheets, and I'm not sure either will be applicable:
Caramel Wheat Malt, 90-110 EBC, Product obtained by custom malting, saccharification and roasting of specially selected wheat, to develop the aroma and colour required.
- Strongly accentuates aroma, thus giving beer a typical taste.
- Reinforces the colour of the beer.
- Enhances foam stability.
- Increases extract and thus brewing yields.
- Colour : 90 to 110 EBC (equiv. 34 to 42 degrees Lovibond).
- Moisture : 7% maximum.
- Extract : minimum 78% on dry matter.
Product obtained by custom malting, saccharification and roasting of specially selected barley, to develop the aroma and colour required.
- Gives beer mild flavours and a pleasant, subtle taste.
- Improves the smoothness and stability of beer.
- Slightly reinforces the colour of beer.
- Colour : 20 to 30 EBC (equiv. 8 to 12 degrees Lovibond).
- Moisture : 7.5% maximum.
- Extract : minimum 75% (dry matter).
... But neither of these seem like exactly what I'm going for. I suppose I could go the caramel wheat route, which sounds interesting on its own, but that 30-45 L coloration makes me wonder about what contribution it would have (8 oz per 5 gal)