for linux as it has 8 GB Ram
Regarding moving other sites, it is possible. But the facilities you might be using like cpanel, etc, hosting company might be in better position to transfer those.
Please hire a server by coming Sunday which will be Monday here in India. We will start deploying the application on server on Monday and start testing the performance.
Due to holiday's last week, we were not able to send to tentative dates to hire a server.
We will let you know as soon as we have clarity on that.
cPanel provides cPanel hosted emails as well. If you are not creating email addresses using cPanel, dependency on cPanel reduces to some extent.
Another good thing about cPanel is that it allows you to create FTP users and MySQL databases without technical knowledge.For migration, a subdomain for your website needs to point to this VPS. So your site might run on subdomain.ambur.net. You can upload all the files from your current hosting to this new FTP setup.
If everything runs smooth on subdomain, then you can point your main domain ambur.net to this VPS.
In VPS without cpanel, 8 hours of dev and support hours is
required so that you can start uploading files.
In VPS with cPanel, apache and FTP comes pre-installed and is more or less self managed without need of developer help.
This migration obviously needs to be done once you decide that querying service will stay for long term.
We are suggesting that transferring files needs to be done from
your end as we do not have much information about your current
setup and you have also suggested that you are comformtable using
FTP to transfer files.
If number of files are too high and FTP transfer breaks in between, then another option is to get SSH access to the server, zip the files using command and then download single file using FTP or SFTP.