From a BJCP stylistic standpoint, I think WLP029 would be out of place and contribute too much of an estery note. 080,001,1056 (i.e. anything neutral and malt-minimizing) would work fairly well. 6-row would be "historic" but low-kilned 2-row is perfectly fine and traditional from today's perspective. I feel that 6-row, as mentioned, gives a bit more husk or grain quality, but not overwhelmingly so - subtle at best. You might find you get less extract/sugars from 6-row than you do 2-row so it may require an extra 1/4-1/2 lb to hit the same gravity.
From a non-stylistic standpoint, I think 029 with some 6-row and grits would be an easy no-thinker-drinker. Somewhere between a kolsch-style beer and cream ale, which basically calculates to a subtle nuance. If it's not going into a competition, I see nothing wrong with this route at all.