Darin, I'm with Jeff, in fact I've been contemplating doing what he suggested for a couple of years now. Haven't done it 'cos I can't justify carrying more gear.
I've been with Lee L ever since I realized that a 38/4.5 Biogon covers 84 mm with good illumination -- there's a very sharp cut off at 42 mm off-axis -- and decent image quality at the edge. On 2x3 film as I use in my humble Century Graphic that means a fine 24 mm x 80 mm strip. Ever since then I've alternated "Who needs an Alpa 12?" with "Who needs an XPan?" Yes I have a Century and use a 38 Biogon on it. Now I have a 35/4.5 Apo Grandagon that I also use on the Century; it puts good image in 2x3's corners so give better cropping opportunities.