If you already have the money in... Whatever crappy alt that is, Then why do you need a loan? You obviously could just sell the alts to buy BTC or ETH. Your post makes no sense unless you are just trying to scam someone, then it makes total sense. You are never going to be a successful criminal unless you make your scams more believable.
I do not want to sell my ICX
I have tokens worth 270k$
They will be as collateral.
I'll take a loan only from a person with a great reputation here
I will provide all the evidence to him
But the thing is you have the money. You could "loan" yourself $200000 by cashing out your ICX then buying it back with the money you intended to repay with. This would save you $60000. Which, by the way, is an insane amount to pay for time value over 10 weeks. You are asking people to loan you money and your collateral is money. This does not compute. People with $270000 in cash do not ask for a $200000 loan and use the cash as collateral.
But if you are serious here are reasonable terms that someone may agree too.
1. Secured collateral totaling more than the loan held in escrow until repayment. You will send the alt-coins to an escrow who will release them to you upon repayment or the loaner if you fail to pay.
2. A signed and notarized contract obligating yourself legally to repay.
Lastly think about how this loan is denominated. If repayment is in dollars then what would happen if the value of BTC dropped by half tomorrow? You now have half the money but owe the full amount. Even though you may want to pay, you might not be able to.