Shopify International Payment Setup

I need help setting up my Shopify store to accept international payments. Currently, I only have a normal bank account and PayPal for international payments.

Key Requirements:
- Set up Shopify to accept payments from the United States, European Union, Australia and worldwide.
- Configure PayPal as the main payment gateway.
- Assist with setting up currency conversions for international customers, if necessary.

Ideal Skills:
- Extensive experience with Shopify setup.
- Proficient in configuring PayPal payment gateway.
- Knowledgeable in currency conversion setups on e-commerce platforms.
- Previous experience with international payment systems is a plus.