I (F30) matched with a man (M33) who wants to travel 600 km to meet me after 2 weeks. sweet or a sus?

here’s the situation: I (F30) recently met a man (M33) on a dating app. He lives about 600 km away. Now he wants to visit me, or rather come to a nearby city where his family lives. But he said he’s mainly coming because of me. I agreed and we’re planning to meet next week.

The actual “problem” (or maybe it’s not even a problem):
We’ve only known each other for about two weeks. He’s even helping me with my job search and asking his friends about opportunities, even though I never asked him to do that. Of course that’s nice, but some of my male friends think he’s investing a lot just to have sex. They basically think that’s his main goal.

A small note: I was already planning to move to his city anyway once I find a job there, and now he’s helping me with that.

Personally, I don’t want to have sex on the first date, but I’m a bit worried that he might come with that expectation.

Do you think I should bring this up before the meeting and tell him that I don’t want to have sex on the first date? Or would that be over the top?

I honestly find it hard to understand why someone would travel 1200 km in total, maybe even book a hotel, just for sex. He’s a very attractive man and could probably easily find someone in his own city for that. That’s why I don’t really understand my male friends’ perspective.

I also don’t have much dating experience, because I was in a very long relationship before. That’s why I’d especially like to hear other perspectives.

Thanks in advance!

TL;DR:
I (F30) met a man (M33) on a dating app. We live about 600 km apart and have been talking for two weeks. He wants to travel to see me and stay in a nearby city where his family lives. He’s also helping with my job search, even though I didn’t ask him to. Some of my male friends think he’s putting in this much effort just for sex, but I don’t want to have sex on the first date. I’m wondering if I should tell him that beforehand or if that would be over the top.