Затерянные рудники Фанделвера: версия для мастеров. Во что поиграть по DnD?

Just in case - these are just my thoughts and are in no way binding on anyone. Thoughts - what changes would make sense to make, on the one hand (just in case, during the preparation process, I discovered that I wasn't the only one with similar thoughts - some of them are just coincidences, but in any case, I'm grateful to the people whose creativity helped me). Version 2 Thoughts on how to change the starting structure, how to include references to future antagonists, what antagonist might be included first. Also, how to change the final boss.