Thank you for the feature suggestion. I have logged it and notified the website team. The MD5 sum will be added to the downloads page.
There are several ways to check the validity of the downloaded files even now. For example the r.a.d.controls
exe file contains a digital signature. If the file was corrupted during the download process, you will see a "Digital Signature is not valid" message when you check the certificate. I am attaching a screenshot, describing the process.
The zip file's integrity can be checked with any freeware zip program - click the "Test" button when you open the archive.