I loved building it, and love mining, but kinda thinking that with prices the way they are (gpus overpriced, coins underpriced) it might be worth it to flip it, buy some BTC/alts, wait for a pump and then sell and the buy more gpus and build another rig. Might be crazy but I see people asking insane prices for ready-built rigs on craigslist. Thoughts?
You have the skill and talent to build a rig. That's great, why do not you make service in your country. That's a good idea, right? Many people can not build a rig, and do not know the GPU mining, it is not easy.