Collecting French 20-franc gold coins

I'm thinking about building a type set of sorts, made up of French 20-franc gold coins. The set would consist of at most 9 coins, one from each of the periods listed below. Some of the periods are pretty short though, so coins from those periods might be too expensive.
Has anyone worked on a set similar to this? Any advice?
1st Republic
1st Empirie (Napoleon I)
1st Restoration
Hundred Days
2nd Restoration
July Monarchy
2nd Republic
2nd Empire
3rd Republic
0
Comments
I have a few of these coins.
Note that some of these coins for sale are restrikes.
France 20 Francs 1810 Napoleon I
Gold, 21.0 mm, 6.39 gm
Mint W-Lille, Privy Mark Caduceus, Edge: DIEU PROTEGE LA FRANCE
France 20 Francs 1912 Rooster
Gold, 21.0 mm, 6.45 gm - Restrike
The Mysterious Egyptian Magic Coin
Coins in Movies
Coins on Television
Nice. From my initial research, some of the coins seem readily available and affordable, even in BU condition. I've even seen them listed for as little as 2% above the spot price of gold. I do, however, want to avoid restrikes.
I'm not sure which years of the roosters were restruck, but the pop reports make it pretty obvious that you're safe with anything up to 1906. Take a look and you'll see what I mean.
https://www.ngccoin.com/census/world/france-1870-to-date/sc-120/g20f/
Doggedly collecting coins of the Central American Republic.
Visit the Society of US Pattern Collectors at USPatterns.com.
Sounds like a doable project worthy of undertaking…off the top of my head, my initial concern would finding one from the 100 days. I suspect that could be a challenge especially if you are seeking an MS example.
Good luck with the project.
Experience the World through Numismatics...it's more than you can imagine.
Yes, the Hundred Days will be a challenge. Maybe I'm missing something, but my initial research also suggests that not many gold coins of any type (franc, livre, Louis) were issued during the First Republic.