I have been working again more on the shop & the shop manager. One thing to be done is to convert the shop & the deposit overall from numeric item IDs to item names. The next thing is to finalize the shop manager.
For the transformation to item names, I have just now finished the deposit box. The shop still has to be done and is therefore currently offline. This should not take too long I hope.
Since the shop manager is currently only displaying information (I hope it will be possible to buy & sell stuff there sooner or later), I change things there on-the-go and this means that for some of the items you might get an empty screen or some errors. In that case, just ignore it and wait for it to be fixed, it’s all a part of the process.