Hi, I get $ 28 for every 1000 members.
I will charge you $ 140 for 5k.
The time to add these members will be about 3 to 5 working days.
How you will add these 5k members within 3 to 5 days? Will you use any bot or all the members are genuine. I have doubt about your members, as the op is newbie please do not try to scam, op requires crypto related members.
Please do not send any fund before task complete, you should use escrow to avoid scam.