Here's what I did with the cracked frame.
US$ 6.00 DIY repair.
Around US$ 300.00 on Carbon Speed fork & seatpost, Cinneli Mash bullhorn (knock off), Shimano Tiagra 2x crank, Shimano Sora clamp brakes, Tektro brake levers, Jaguar brake cable/housing, Fizik bar tape, Circus Monkey spacers & seat clamp, press fit adaptor, single speed Olive chain, chain tensioner and Ti skewers. Just an estimate, didn't really keep track of the expenses, but pretty sure didn't go over that figure and is inclusive of the repair cost. Assembly was free of charge as a friend did it for free. Everything else came from old bikes.
Single speed!
Total weight, 7.85kg.
So far, only did around 20km (2 x 10km) rides around town. My first time with a bullhorn hb. And had to stop a few times to adjust the brake levers to a more comfty position. Rides pretty good althought the 50x13 gear made starting a bit slow and climbs a cardio experience. But I'm enjoying this bike. And hope that repair would hold for longer rides.