If you are confident the price of the SPS will go up in the future by 10%...wouldn't be possible to take a 10k personal loan over 3 years with a low APR and put this back as into the business? It seem this year there are less collectors with deep pockets hunting for "exotic bikes".
Actually, that was plan B. End of the tax year put the money back in to the business on borrowed money from Zopa, day after the new tax year starts pull it back out and pay off Zopa!