Past Seasons Gamemode

So I haven't been playing this game for very long and I personally love watching all the videos of older builds of league of legends and it all got me thinking. I think a lot of people are like me and didn't get to experience much of the "legends" of league of legends and it would be fun and interesting to have it around again for the multitude of players that never got to see it in the first place and for the veterans who would remember it nostalgically. I understand that this would probably be intensive but it would be so interesting and would really shed some light on the difference between the way things are now and the way they used to be.

So, my proposal is this:

    5 players on each team, summoners rift: Blue side affects baron and red side affects dragon if either team picks s5 or s6 then scuttle crabs will spawn normally. Each member of each team gets a checklist to put their preferred seasons in order of their most preferred to least preferred and the highest average ranking season is the season for the team. After each team has picked a season (their runes and masteries will stay as s6 masteries) both seasons are revealed to both teams and old draft pick will be used to determine picks and bans. Towers, minions, experience, gold, items, champion abilities, and jungle creeps for each side will be identical to the season that the team selected. I think it would be balanced in a sense due to the fact that even though if someone were to pick say season 6 and the other team were to pick season 3 though the season 6 players would have an advantage in team gold due to towers being worth more, season 3 players would have the advantage of cheaper health potions being able to build brutalizer, old last whisper, old blood thirster, and old deathfire grasp may it rest in peace. It should also be worth noting that the "season" should probably be on the last patch of that season to avoid any misconceptions.

Tell me what you all think, it would probably be a lot of work but I could see it being a really fun gamemode especially for people who never got to see or long for the days of four pot cheesing people or gragas oneshotting people. Miss Nidalee being an effective midlaner? How about Leblanc having a silence? Or Riven's Q doing actual damage rank one? Probably not but how much fun would it be to be able to play it just one more time.