I just got done replacing my bellows, gimble bearing, and water pump. now im getting ready to put it all back together. my question is, would it be better to put the upper and lower halfs back together on my bench then mount it on the transom, or do the upper half on first and replace the lower half after that? OR does it really even matter, the thing is im doin this by myself so thats why i thought doing on half at a time. Thanks