I would not wasre any efforts growing a Lemon Zest from seed, especially in your location when you have reasonably close proximity to purchase an actual tree.
All of South Florida does not have a limerock composition soil. Much of it does have sand and that is what you want, so you are good there.
As to varieties, they all taste like mangoes, its that some have distinct flavors combined with the mango flavor. We can all recommend certain varieties however it doesn't mean you will like them or its what you are looking for, You mention Baileys Marvel, to me, I wouldn't plant it. Why, not my favorite in terms of taste. Its a vigorous large growing tree. It seems to basically ripen all at once and here in SFla does not seem to do well in inland locations. I also would not say it has any better cold tolerance. If mangoes do well in your area, than dont worry about the variety.
If size is not an issue, for thst basic mango flavor I would consider Zill, Valencia Pride, Dupius, Spirit of 76, Southern Blush, Keitt to name a few. Not saying these taste just like a Haden but they all have a steaight forward mango flavor of sorts.
Now, to go the other way, what would i recommend, Mallika, Frances Hargrave, Sweet Tart, Coc, Peach Cobbler, Ugly Betty, Lemon Zest, Honey Kiss to name a few. There are also other excellent varieties i recommend that are not commercially available but may be available at time with custom requests.