Start-up seeks software to support rentals and sales

I work with several companies - in the US, Hong Kong, and Germany - in the rental and sale of event equipment and am looking for software to support me in this. The German branch is still in the start-up phase.

The software should meet the following requirements:

• Goods receipt and goods issue (delivery notes, packing lists)....for sales
• Goods return and goods issue (delivery notes, packing lists)....for rentals
• Multi-user capability, multilingual (at least English, German; French, Spanish, Russian also welcome...)
• Management of SKUs (8-digit numeric) and serial numbers (4-digit numeric)
• For rentals factor tables (rental periods have different factors depending on their length)
• Two-level product group structure
• Distinction between quantity items and serial number items, as well as bundle items, which can consist of both serial number items and quantity items
• Export functions
• Import functions
• Stock check for rental and sale already during quotation creation, then again before order confirmation
• Different factor tables for different product groups
• Three price groups in sales and rental
• Multi-currency capable, but at least USD and EURO
• Preferably cloud-based
• Extras “good to have”:
• Carnet ATA creation
• RFID scan option

Initially, one software workstation is required, up to three in the medium term, then openly scalable.