Your stock classes question is complex and depends on a lot of factors (sorry to give a typical lawyer answer but it's true here). If you just have founders and no investors, just common stock can be typical. If it's seed investors and founders, it usually breaks down into preferred for investors and common for everyone else. Authorized and issued shares varies depending on these factors too. Definitely critical to do this right the first time.
Hear your point, and agree generally, but parts of this are definitely critical. For example, you have a hard stop window of 30 days to file your 83(b) election. If you miss it once, it is gone. That can create millions in additional tax liability if you have a successful company on your hands. If you don't have someone watching for stuff like this, it can mess you up pretty bad down the line, regardless of if you roll into a new company. Fixing problems that could have easily been avoided often ends up being costly.
Your stock classes question is complex and depends on a lot of factors (sorry to give a typical lawyer answer but it's true here). If you just have founders and no investors, just common stock can be typical. If it's seed investors and founders, it usually breaks down into preferred for investors and common for everyone else. Authorized and issued shares varies depending on these factors too. Definitely critical to do this right the first time.