Everything you have mentioned above will factor into how much I would invest into an Altcoin,
If it is a solid top 20 coin, that has been around for years, has growing functionality and real world use cases, then i would probably invest 5-10x as much into a coin like this than I would say an ICO who have a good team and roadmap but no current use cases or track record
I suggest you forget about the new project. You already have a good choice if you want to invest in top market assets. the new project is part of a scam on the crypto market. ICO or IEO is the same. choose the least risk. trade or investment that is already in the market.