If it were me I would offer a 7A SBA Loan as a long term solution (up to $500k with no real estate). However, I suspect he won't want to wait, so I would still try to get him qualified at Rapid or some funder that has reasonable rates. Rapid will pay off 2 positions and only offer first position loans, and must net at least 35% of the funds. Here are their latest rules.
THEY PAY OFF PAYPAL/SWIFT/LOAN BUILDER
THEY CAN LEAVE KABBAGE AS WELL AS FUNDBOX AND ON DECK LOC PRODUCTS IN PLACE IF AGGREGATE BALANCE IS UNDER $50K
THEY PAY OFF ALL BLUEVINE POSITIONS OVER 50K THAT ARE DAILY OR WEEKLY – THEY CAN LEAVE MONTHLY PAYMENTS IN PLACE FOR BLUEVINE
Seems like a viable option in the short term, if it qualifies.... good luck!