Dude I suggest the same thing to a person who was willing to invest 5k USD . And you are investing 7k which is alot . You can buy bitcoins like 0.5 btc but then now I think it will be near 20k for w long time. ETH would be the best option as you would get 7 ETH now and by the end of this year ETH will be around 20k
So you will have 140k USD by the end of this year if you hold. Btw this is just an assumption but I am pretty sure that you will have somewhere or above 100k USD if you buy ETH and hold.