Not an expert just speaking from personal experience

You may be aerobically fit enough but ramping distance like that will heavily increase injury chances. I wouldn’t recommend it but you probably can do it

Yeah upside is a plus. I think there are viable alternatives in:
- Ayuso
- Philipsen
- Merlier
- Tarling
- Ganna
All those guys are good for multiple WT wins a year, all the other riders (like Healy, Laporte, Buitrago etc.) are one of many favorites despite their magnificent talent

Milan, Pedersen with a better sprint