New Authority CDL-A t/x ,uei, cage,HUB can't finance a box truck?!

I timed starting my business very poorly but here I am. DOT and mc number with all proper Insurance in an area where jobs are pleantiful. I have to rent a 26ft box with lift gate from Enterprise by the day plus mileage because I cannot get financing to save my life. I can't even get a preditory loan with bad terms. I am authorized for fed govt work. Have my UEI number and CAGE code. Im a HUB underutilized business and am allowed to apply for all govt grants as a vendor. I'm about to have to go to work for someone else because I can't procure a major credit card with 600 dollar limit to rent the truck anymore. I missed out on 4k worth or loads today alone because I have no assets! Do I just give in and go work for the other guy or do I try and beg borrow and steal to keep my authority and somehow get my 26ft box with liftgate ?

I feel like a company driver is a much safer bet, but screw safe. I'm tired of working for everyone else. Any advice?