I know this is an old thread but being new to the forum. . . . . here's a different alternative to factoring.
I can accommodate doing sale leasebacks on equipment already owned or almost paid for (as that equipment will have decent equity). It's a little more difficult than doing a normal new deal . . . . and your other lenders will probably have to sign a waiver as they will certainly have registered either a General Security Agreement (banks love those) or have registered as a blanket interest on the Personal Property Security Act (PPSA) (if in Ontario).
But at least your daily trade customers won't be involved.
Not trying to muscle into the Factoring industry but I think it might be an interesting alternative.