I'm having a couple of minor problems - I'm a newbie to web design but not systems

Basic info: I am creating a eStore so that I can sell my music in audio or video format. I was a very skilled systems and network engineer until I was hit at high speed on the highway so my income is limited; thus the need to get my page online and sell my music. Also sadly my income doesn’t give me room to hire a professional to help me. The proceeds of what I am able to sell will be put towards operation#4 on my lumbar which is now at 5 herniated discs. I have tried various platforms either 3rd party software and or services that host with their own software but none compare to Wix so I am hoping to go live this month on the 22nd after I get paid. I am using Dropbox to store my songs in various audio formats and videos in MP4. All songs have a high res (the versions that will be delivered when purchased) and low resolution (lower quality unmastered tracks in 16bit 44KHz format for streaming and for potential clients to be able to listen to.
Question:

  1. I have the pages setup such that the root page is 'Browse Audio & Video" which goes to a page that gives the user the option to 'Browse Audio" or “Browse Video” which should them take them to yet another page that displays all of my album covers that gives the option to drill down into whichever album they desire and listen to the audio track or video track that is linked with a play button from Dropbox (not uploaded here to Wix to save on storage space and bandwidth use.

  2. How can I remove my items for sale as being physical?

  3. How can I give the clients the option of purchasing say a FLAC audio file with Option 1, 2 or 3 of the song art that I created?

  4. Is there a way to convert my existing work into the Wix Studio Editor I believe it is. I was curious to see what the difference was and after I got into it I was half scared that I lost all of the work I have done so far on the design I’ve been working on here.

Product:
[Which editor or feature is your question most relevant to? e.g. Wix Editor, Wix Studio Editor.]

Currently using Wix Editor.

What have you already tried:

I did connect my Dropbox account to my page, but when I tried to link a video (as a test) it uploaded the video here rather than used the share link on dropbox.

Thanks so much in advance for any help anyone can provide.

-You can’t migrate to Wix Studio if you are using Wix Classic Editor and only Editor X sites can be migrated to Wix Studio.
-Use Wix E-commerce for better sale option. (CMS quota will higher as your sale items becomes larger.)
Or put like 10s audio of the file you sale like a trailer.
And when user purchase, direct them to download link

Wow… that’s quite disappointing that I have put so much effort into designing my page in the standard Wix Classic (as it was the only option presented to me) but the studio option has so much more to offer. Looks like I’ll be starting over yet again but with Studio…

I’m not worried about the limited amount of time a user can listen to the song, I just want to be able to provide a listen link via dropbox…

I thought this was going to be much easier to do, but apparently I’m back to square 1…

Thanks for your help Mike.