Questions about deploying a coin

I'm learning solidity originally after being fascinated by ethereum smart contracts. I know the basics and roughly how to go about deploying an ERC20 or other token. But now I'm looking at binance because its faster speeds are looking pretty favorable. As a growing developer, I have ideas about projects I want to start but I have a few questions.

1. Is ERC20 and BEP20 similar in terms of coding in solidity?

2. Can I make some sort of BEP721 (like ERC721 aka NFTs)? Is there any sort of list of these besides BEP2 and BEP20? I know of like 20 different ERC standards. I can't find any other BEP.

3. For a simple BEP20 token, assuming no major project backed behind it, how much would you guys estimate deploying will cost? I know it varies a lot but if I have around 5k to spare, is it worth getting serious about this? Or can someone give me some range or rough idea as to how much projects cost? Is it cheaper than deploying onto the ethereum network?

4. Can a programmer single handedly get a token onto a dex like pancake? If there is a solid project and web page with real support behind it, would it take a long time to get a coin onto a dex? Is it even possible? Is it worthwhile for someone who is mostly looking for a profit?