Wix E-Commerce Search Integration

My Wix website is already set up but I am struggling a little to get the e-commerce side set upto to sell physical products, I think we are nearly there but the automated emails that Wix sends out when orders are completed are very basic, I had a friend do some custom coding to get some custom emails set up, however he has had to take time away due to personal reasons, I just need some help to finish off, I would also like some help with shop layout, I would like to add a clean, fast product-search feature with intuitive filtering (category, price, size, and any custom tags I assign). Everything must live inside Wix, so you’ll be working with Velo/Corvid, Wix Stores, and the existing product database.

Let me know if you’ve built something similar on Wix before and how quickly you can deliver.