@Splangy Something to consider is the driver's height determines where your seat is positioned when you drive. If you're 6ft tall... I'm assuming your seat is moved all the way back? Also, are we talking about a 79+ or 78+earlier truck? I had a 78, but I didn't change out the 4-speed. So, I cannot comment on how the 5-speed mod would turn out in that truck.
@tstepp920 I'm not sure how soon I'll get to the garage, but I'll take pictures of the driver's seat with the 60-series shifter in 2nd gear. I have an 81 setup by the way. I don't have the transmission/body tub cover in place at the moment. I'm drilling my input/output flanges for the correct drive shafts and deciding what to do about the transfer case shifter. I haven't driven the truck since installing the new transmission w/correct top loader; however, the truck came with an H55F w/incorrect top loader & correct 40-series stick shifter when I bought the truck.
There are plenty of H55F conversions that are functional. On the other end of the spectrum we have the install that closely mimics or is identical to the factory design. Either way, these recent posts seem to focus on what is required for 2 things: functional install vs. closest to factory install