4k isnt a big investment, certainly not worth the hassle on crowdfunding on. Second question is - If you increased marketing efforts and took on more work to increase funds is that something you'd have time in your schedule to do? Or would that involve expanding staff?

In the long term id personally i'd look to the bank for a business loan, that way if you needed added expertise then you can employ people at your wish who would be a better quality than those involved in crowdfunding.