That's gonna look sweet! I have a 15 gallon Metaframe out in the shed with a cracked pane of glass. It was in great shape when I first found it but I left is sitting on the deck for a few days and the kids bounced a chair into it and cracked it. sigh....
I still haven't found a sealant to repair it with because silicone will not stick to the slate bottom. Maybe I will place an extra glass pane over the slate and silicone to it during the repair.
In any case, yours is ready to go and will great planted. I love vintage tanks!
Reborn from salt. Plants, here I come!