How sure are you that this will work and return a profit? A lot of signals groups (especially if they lose leverage) don't turn a profit - some do but the majority probably don't and most pass the trades they have higher certainty on to the free channels in advance or lie about their potential profits (as in saying how much they'd make if they went in at the buy price and sold at the last take profit - which wouldn't be done in anyone's strategy as the win rate would be ridiculous)
I'm going on a report from an independent website
https://safetrading.today/traders/crypto-rocket-signals/ although i'm not 100% i'm interperetting the figures properly. It looks very transparent in terms of their reporting and at $90 isn't too much to trial. I'm trying to figure out how much a 5K margin balance could bring in. I guess it's hard to say without giving it a go.