Solar system setup costs tens of thousands of dollars on a low scale...hundreds of thousands on a high scale. There is no way a newbie miner will ever want to get into the can of worms. As for recommendations on miners and mining in general, I say wait until the halving because there will be a lot of cheap gear people will be selling and also you can get a better calculation of ROI after the dust settles. This will give you a good amount of time to learn things about mining!