One thing to remember is that some/most are not turned off by a non-glamorous industry like logistics but rather attracted to solving problems regardless of the industry. I’d hire someone who can actually do coding (so not a CTO, CIO level) that is also or has been a lead who can delve into your business and review existing products and can get you an 80% POC in under 3 months. It may not be pretty but it will help you better position to ask for more $$ for contractors or other employees. Start with 1 then scale from there. I’d give them 1 month to study the existing system with no deliverables other than documentation that will be used to replicate your product needs. I’d also be sure to hire a PO (Product Owner) if you don’t have one and have them also learn the product inside and out as they will be the gatekeeper between the coders and the users as to how the product functions and that the coders fulfill all the requirements.