How to buy arweave on MetaMask?

How do I purchase Arweave tokens using MetaMask? Could you please provide a step-by-step guide? I'm new to crypto trading and want to ensure I'm doing it correctly. Also, where can I find reliable information about the current price of Arweave? Should I be cautious about any potential risks involved in the transaction? Finally, are there any fees associated with buying Arweave through MetaMask, and how can I minimize them? Thank you for your assistance.