Drenku you need to add this lines to Components.sbc and PhsicalItems.sbc to add ya custom items to shops

<MinimalPricePerUnit>1200</MinimalPricePerUnit>
<MinimumOfferAmount>100</MinimumOfferAmount>
<MaximumOfferAmount>900</MaximumOfferAmount>
<MinimumOrderAmount>100</MinimumOrderAmount>
<MaximumOrderAmount>900</MaximumOrderAmount>
<CanPlayerOrder>true</CanPlayerOrder>
<MinimumAcquisitionAmount>100</MinimumAcquisitionAmount>
<MaximumAcquisitionAmount>500</MaximumAcquisitionAmount>

Change prices to what ya want.