Nice write up. I also recently went through both games just so that I could say that I have gone through every main game in one of my favorite series.
Metal Gear was definitely a tough one to go through. I didn't have nearly as much trouble with the rolling pins and traps like you did though. Despite using a guide, my main issue was just forgetting where I had to go next or what I was doing next since I pretty much had to wait a week at a time to play it. It was definitely a game that I have no desire of replaying again.
Metal Gear 2 was much improved and I also enjoyed my time with it a lot more. The story was decent and I was genuinely surprised about Schneider being Black Ninja. Like the first, however, I had a tough time remembering what to do next because of the exact same problem of having to wait a week at a time to play.