As to the memory footprint, I haven't seriously looked into it. The problem is that we have to run GTK+2.14 and GTK+2.6 on iLiad concurrently (unless GTK+2.6 got replace by 2.14). It wll definitely take up more memory.
Besieds, I merely managed to build midori 0.11 or 0.12 (
https://www.mobileread.com/forums/showthread.php?t=33582). In fact, I can't build Midori 0.17 to 0.19.