Am aspiring to start cooking gas refilling business soon. But I need to get something clear. Please help me on the following questions.

What is the present unit cost of gas from the supplier?
How will I get a supplier that will be delivering gas to my gas station (to be sited in Akure, Ondo State)?
Do I need to incorporate the business before I start?
Which agency is regulating gas station establishment, and what are the criteria I must fulfill?
How is cooking gas measured?
Where do I buy from?
What are the common challenges cooking gas
retailers face?
How do I identify quality gas?
How do I refill a customer’s gas cylinder?
What are the various types of cooking gas that
exists and which is the best?
What are the factors that affect the market
price of cooking gas?

And ESPECIALLY, How mush will it cost me to start a station that can fill up to 300 cylinders of 12.5kg per month.

I earnestly await your contributions to my success . Thanks.

For refilling gas, you need an expert. It can't be mastered overnight as many home cylinders come with different issues.