Why is the wallet requesting to download 20GB worth of data at first and also be needing 60GB of my HDD. Please, is there no other way because I don't have much data connection for such?
What?? from where you got 20GB

win 64 binary file 12MB for installation - space required -39.0MB
- you must mix up something bro and read your hdd space available 60GB as needing lol
You tired, come back tomorrow to this
A new coin with a new blockchain should only need to download tens of MB of data before it's synced.