http://www.ign.com/wikis/fallout-4/Bedford Station
It says there are only Ghouls there. I think I was able to clear it if I remember right. I am about level 6 I think.... It seems to be near the starting area. Its southeast of Sanctuary.
I have been able to manage the radiation levels just fine so far, I don't have a ton of RADAWAY but have had enough to get by.
Also too I read that the power suit is not really necessary to use to defeat enemies.... more of just there to have fun with and upgrade etc....
I would recommend leaving the suit near your the repair station so you can add upgrades/repair it. Once you run out of juice it will automatically leave the suit where you ran out of energy.