I would suggest you write up a business plan. Asking a forum how much it will cost is like shooting in the dark...everyone has a different view of what a pet store would be like to them and therefore a different "cost" to fill it.


If you really want to focus on herps then a very small store (at first) might be a better start. Lower overhead and if you really think about it there aren't that many supplies to stock...sure you could offer tons of different options but why at first. You need a niche to go after if you plan to compete against the big box pet stores. Have quality animals, and a very knowlegeable and helpful approach is key...then you could offer "complete packages"...sort of like tank and every you need to get started. Just one of many ways to get started.

Or you go the other way and stock everything...you will carry lots more inventory (and therefore much more cost) but you will something for everyone.

You really need to sit down and think about what "YOU" want the store to be known for...then that will lead to how big it needs to be and what you need to carry.