Can you rent the equipment instead or borrow, etc?
If rent is possible - then your cost outlay will be lesser.
As a startup, don't over-invest in marketing, focus on the process of fitting your product to your identified market - you probably will keep adjusting products and improve your understanding of customers and even change target customers in the process.
Make possible the product-market fit, then explore a product-market-experience fit with the intention to build continuous delights for customers and smoothen the attraction of new customers. When this is validated, you can make a decision on the next step of your venture.
I am looking at making your business move, we are not yet building a scalable, repeatable, viable business model - we simply making it possible to move correctly towards a customer-centric approach.