If a lender needs to wait a long time to sell your collateral when you default then it probably wouldn't be very good collateral. According to the sticky about the need to use collateral:
What is considered collateral?
Collateral is something that can easily be resold to cover the loan value plus interest should the loaner default on the loan.
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If your NOBL cannot easily be resold (eg it takes a long time to sell it) then it is probably not valid collateral.
Also the amount you are trying to borrow is only enough to cover the principle, not the interest. How is a lender suppose to get his interest that is due him when you default?
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In general the amount lenders will be looking for is collateral equal to 110%-120% of the amount you are being loaned. Why is this? Well, first, they want to discourage you from running off with the funds. Collateral also needs to be something that can easily be sold,
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