Looking for a bigger backpack

I wanted to go a bit lighter with a smaller pack. The First Ascent Venus 55 + 10 (green) is a great bag, but I should have taken the 65 + 10. Used once - mint condition. R 2 000.
Anyone want to downscale or have a First Ascent 65 + 10(or similar from another reputable manufacturer) that wants to swop/sell?