I'm certainly not investing/loaning/whatever money to someone with bad credit!You're assuming a knifemaker can get a personal loan to buy a grinder.
I don't think a "startup" loan is the suitable financial product for a $1,000 grinder. There are advantages to business loans, but I doubt the hassle is worth is it for such a small thing.
A small personal loan from the bank (or a credit card) would be the simplist and safest method. Payments don't always begin right away. The interest is manageable if payments are made on time. And for such a small amount you wouldn't need collateral.
Guess I'd rather pay $150 for a real knife than $100 for a maybe knife. And I'd rather be in hock to a single, professional, finiancial institution than to ten seperate crazy-impatient knife knuts.

Best Wishes,
Bob