I also recommend 111 (or 177). I own both 183 and 111, and after I saw 183 at an AD, I was quite disappointed with the case (Dial was near perfect... IMO). 111 looks a lot closer to gen due to the overall look of it - although it has a couple of flaws on the dial (font color and "L SWISS MADE L" being to close to the "6").
If you're into base, 112 is a great choice too. On the gen, "L SWISS MADE L" is also a lot closer to "6" than it is on gen 111. If you're into a bit more vintage look, G series pam dials (painted numbers with "L SWISS L") are nice as well & more accurate in my opinion.
Most standard reps (especially sandwich dial models) come with 2 problems that can be modded - recessed cannon pin and weak lume (well... also thin crown too...) but I am sure you already knew these.
Ruby's 036 comes with thick TI crown with no recessed pin problem... so it's a bit less work if you want a more accurate looking Pam (it has its problems with the dial too though...)
Joe