You should have specified which currency you mean, because it's not exactly the same if you have $ 100k(US) or the same amount in ZWD. Either way, don't be naive and give such an amount to someone unknown, because you will most likely be left with nothing - why don't you buy 3 BTC and you still have enough left for some other things?

You are looking for a project to invest in or you already have one project and just want to invite people you have to clarify because there is this word if you are looking for a new project why going for a raw project when there are already existing one that is already stable, and show us if you are really capable
But if it's your project then better tell us about your project what is it what it can bring to the community.

He's probably finding to invest his money.
The word "your ideas" means that the project isn't made yet and it will be made from scratch where he will invest to. Because investing in a startup business is more profitable once the business blooms although it is risky to start than investing on already established business.