Probably you should apply to some experts there. You see, our company used to apply to that snowflake salesforce https://skyvia.com/data-integration/replicate-salesforce-to-snowflakesolution and we were completely satisfied with the solutions provided to us. Their specialists were able to develop an excellent product for our business and helped us with its integration. All the best
I would consider hiring a bookkeeper. Not being flippant, but what's the problem you're actually trying to solve? Your bookkeeping, right? There's no perfect integration between QuickBooks and Shopify, and for $120/mo, you can hire a virtual bookkeeper through Bench or Less Accounting's AutoPilot. Both will offer huge time savings for your business. Hope that helps.