Hi all, been awhile, but I'm back

Here's the question based on the shops 2 main criteria as listed:

1) Dual language (French/English)
2) Dual pricing (Retail/Wholesale) (note: wholesale requires 3 tiers)

Store market - skin care products and services

What addon's or enhancements would you highly suggested to integrate with a clean 1.3.8 ZC and why?

Thanks in advance