I seem to remember seeing an acorbate form of Metol, using, I guess. ascorbic acid in place of sulfuric acid on its tail.
Pat - what about trying an Amidol analogue of Rodinal? Then you just have to deal with a chloride which should be much more soluble than a sulfate. Or what about a Glycin analogue - you don't have to worry about any salts then. You stil lhave the para-aminophenol backbone structure as in Metol and the para-aminophenol.
For up from the ashes, up from the ashes, grow the roses of success!