I’d echo the recommendation from Damien. It’s very challenging to get an all in one accounting, inventory management, BOM system at an SME level. The integrations between platforms these days make it very cost-effective and efficient to adopt the right couple of SaaS solutions for your company.
A couple of businesses I’m involved with use Xero for accounting and Cin7 for inventory management, I’d be happy to jump on a call with you to discuss my experiences as our companies have been through the discovery process you’re currently on. Hopefully, I can help you shortcut it.