Decide what you want to shoot in wet plate then see how much if any movement or enlargement you need - if none and say 1:1 (nice in 11x14") then the camera can be ridiculously simple indeed - a black box...

Yes, you'll need a fast lens to cope with bellows draw (if any). But if you avoid popular 'branded'/Petzval lenses there are a multitude of cheaper lenses that will cover 11x14" and be fast enough for sub 10sec exposures.