I have 3 options for 64-bit.
1. Installer in .exe format
Inkscape is quite compact. Inkscape 0.92.2 only takes 275 MB for me. Also have 64-bit. In comperision starcraft 2 takes 33.9 GB. WTH starcraft oO Ok, better comperision, Chorme takes 354 MB, so if you can fit chorme you can fit inkscape ;)