there is a money trick in ROF... heres how it works!:
The compact scope B can be made for 3000k and sold for 4100, the trick revovles are this exploitation
step1: make as many compact scope B's you can make at the tinkerer in the ebel city
step2: go to the ounter and sell them all.
now ypou wil eventually run ouf of the materials to sell create them but thats fine go find the wandering merchant and she sells the scrap iron and glass shard needed to make the the scope B for dirt cheap ( 100 bucks each)
so all that money you made from the trcik buy the materials * dont worry youll use a some buying loads of the materials* but yuoll make it back in one sell through.
i currently have 7 mill right now.
this trick works best in the early chapters where she doesnt move around but in later chapters she will randomly show up at waterless bridge, forsaken or tower of might.