Change Gold & Stack 9.7

[Vorosh]

So, I managed to get a script to change gold (but it only works at start of route when input) but when the gold changes to platinum or platinum to crystal it's not auto stacking, so could anyone make me a script to when I have 100 gold or plat at any point to auto change it, and(!) make it stack with the previous bunch?
-Also, I'm playing on a 9.7 OT without auto stacking, why I need that 2nd part. Thanks!