do it right the first time other wise this happens

I recently was finished and was almost able to start my car a few good cranks and almost, well realized that one major problem, the plate that separates the timingbelt from the balance shaft some how hit my timing belt automatic tensioner and just ate away at my crank angle sensor, ooohh yeah so ordered a new one of sensor and had an extra plate laying around, well after being in a rush I must have not put the timing belt back on the right way and attempted to start this motor and after 2 cranks heard a pop and then nothing, well low and behold my laziness ended up costing me one good head and a week worth of work, bent almost all of my intake valves 3 exhaust valves and broke 2 exhaust valves off entirely, so next day traded a guy one of my old 1g heads I've had forever for another 2g 95 head that is mint condition, and finally have everything on and have checked the timing belt every 10 minutes, and finally after pushing myself for the past 4 days I'm almost ready to start it up tomorrow after putting the oil pan on and slapping the intake on..... what a week so now do it right the first time or redo it over and over again.