Hmm, there is possibility that BTC will hit 19k again and ETH will hit 800$ again If this happens mining difficulty will go down I think that's the best time to try your luck with solo mining, the lower the difficulty the higher your chance
But that's not for today. Well, if OP has the guts, there's no need for any validation from us and just go with what you think you're up. I've seen people that have made a decision that seems like a gamble to them years ago but later on, they've made profit from that decision and they're happy with the risk that they've taken. Since electricity isn't an issue to you and the asic miner that you have, plug and play it man!