You can use your eggs if you have a cock or take one 5 months old and use your eggs after one week
You can find cheap incubator on ebay or make your homemade .
This is my incubator
GAQuail you're right, for this I use a bottle with water and salt as temperature capacitor in box
Meantime I live in Crete island the external temperature is between 30C and 40C for 6 month per year.
Now I try to construct an egg auto turner to solve this problem
best regards
-VK