I bought the Baja Warrior 200 for 100$ from a guy. The engine had split the crankshaft in two pieces.
Lucky for me I wasn't going to use it anyway. I had an old Briggs an Stratton Intek 206 laying around so I used it instead. I ended up using a torque converter along side a 26mm mikuni style carb.
Not a single issue since the build is finished. Only thing it'll need is gas, oil changes, an eventually a belt an rear tire.