Installing Custom Rom on a S3 with Damaged Volume Down Is it safe to install a custom ROM on a S3 with a non-functional volume down key?

What should I circumvent or be ware of during the install?

p.s: the key cannot be repaired.
Without a volume-down key, you can't:


go into recovery mode/download mode without a PC
reduce the volume (duh)
select options in CWM
take screenshots in AOSP-based ROMs


Possible workarounds, by order of mention above:


use adb reboot recovery / adb reboot bootloader, as said in the comments
use a USB jig to force the phone to boot into Download Mode
go into Settings > Sound > Volumes and change values from there
use TWRP or CWM Touch instead
use third-party apps. I think GravityBox for Xposed has the option to add a screenshot option and advanced reboot to the power menu, but I haven't been using Xposed for a long time.