Hi guys. I have two issues that I need to address, The tractor is a B3030. The first is that I have managed to shatter the lh door. Is this a pretty straightforward repair, assemble it on sawhorses and then put on tractor? anything special to watch out for? The other is changing the alternator and the A/C belt. Any hidden obstructions that make it difficult? Thought I would run it by some smart fellers first. Thank you.