Are you just wondering about getting an ink bottle that has a wide enough opening to comfortably get a big pen into? Goulet sells empty ink bottles for a buck or two each so you could get a wide-mouth bottle and decant other inks into it if needed.
Empty Fountain Pen Ink Bottles[/QUO
I want to get a big bottle, and a small bottle, the small bottle will be for work,on a classic wooden desk, which according to finance cost about 2.5k. need a bottle which doesnt look like a kiddy safe bottle ,but can still be used with a pilot metropolitan, jinhao x750, twsbi go, jinhao x450. desk looks kinda like this,
If you are very brave you can stand a Quink bottle on its edge, or lay it down in a metal ring, something like a bangle. Must admit that I usually just pour the ink into an MB shoe or, best of all, a Lamy dimple style bottleQuink bottles are large enough for the 159. If you can find some with the older style label font.
I don't see the 80ml bottles as problematic, personally. I use Diamine almost exclusively and haven't had any problems using up to an M1000 size in them.
If anything my concern now is depth considering the size of some nibs.
Those are really nice for pens with smaller nibs, like a #5 or smaller. I have a lot of pens with larger nibs though, and the well on those isn't deep enough for them.For around $5 each I got a bunch of Sheaffer Skrip-well bottles, U.S.A. (center right)