I think you can store up to a million in one bank location.
The reason the old GOF mod doesn’t work is because we moved the dialog text base files to make multiple language (Portuguese) work better.
I am not interested in rewriting any old GOF mods to be compatible with ERAS.
If you want to modify your own, I think the only change they made in the Userer_dialog.c file, was to change two lines, substitute 1000 with 5610 in two places of that file. So keep the original ERAS version of that file, open in a text editor, replace 1000 with 5610, save file.