collateral : 10 thorecoin erc20 worht 1.90 btc
"thorecoin" is traded on one exchange (according to CMC), Crex24 (24 hour trading volume of around $2 mm), and over the last 24 hours only ~$149k worth of the coin has traded. This is on a market cap of around $120 mm.
My opinion is the marketcap of your coin sounds inflated to me. My opinion is this would be a very risky loan to make.