They are reliable if looked after, many use them as a daily. Cooling is a problem on the Bis but there are fixes. Plenty of Water cooled people on here willing to help.
Remember when you read about these cars most info is about 'I have a problem', that's normal, not too many I used my car for work today and it worked

These are great cars, quirky, fun and put a smile on your face. Sort out the head and enjoy the car.
you are not mad, well not on this forum anyway [-/