File Selected email to folder defined by drop down list in combo box

[ahume12]

I would like to create a macro in Outlook VBA that does the following
- Take the existing selected email in a folder in my inbox (note - selected email, not an email that is open in the current inspector)
- Save a copy of this email in .eml format to a local folder in my C drive.
- This folder path should be defined by a project reference list in a userform
- The project reference will be for example PR001/PR002/PR003
- The paths will be for example eg. C:\Users\username\Documents\Folder PR001 Internal Correspondence\
- The email will be saved with the date added to the subject in reverse date format - yyyy-mm-dd-Email-Subject
- The email will have all unsuitable characters removed from the subject prior to saving.

I have experience of creating the userform OK with the dropdowns, and I have some code to replace the unsuitable character, but I cannot find a way to invoke the saveas function and use the filepath associated with the reference defined in the userform.

I have followed the procedure in the following link which has the rough format I am looking for, including the unsuitable character replacement, however this code executes on the sending of an email, which is not what I am looking for.
Save Selected Email Message as .msg File (slipstick.com)

Would appreciate any help
Many thanks
Al