You will have to adjust your budget, you will effectively take a loss moving here. However your interests are very compatible with Hawaii and they're virtually free. I think in your case it depends on how badly you want to live here.
I spent more than I had hoped to on my rent - but I think it's worth it because I love the place, the location, the amenities and I feel very secure there. I don't know what your standard of living is, but I don't think you will find anything you'd consider decent for less than $1400 a month, even out in Ewa. Some people would say that number is 2k, some would say 2500 a month - it varies by the person. For me, I found good places in neighborhoods I liked starting at about 1800 a month.
I did know that in moving here, even though I make a decent salary, it's not as much as what I was making comparatively by my mainland standard of living, so I realized that I may not be able to save as much here. But for me, the opportunity to live in Honolulu with an acceptable living wage was too good to pass up.
And there is no way to sugarcoat the traffic. I was floored by the traffic here. There's always traffic, even on Saturdays! I'm coping by leaving myself plenty of time to commute, got a bunch of audiobooks and listen to a lot of NPR, and try to chill and not let it bother me.
I've also noticed that most people are much less hung up on material goods here. (Not completely, otherwise how would the Ala Moana shopping center survive? Oh yeah, tourists!)
Why go shoe shopping when all I ever wear are flip flops?
As for meeting people, I'm in the same 30s boat, and while I haven't been here long enough to make any good solid friends yet, I have found that people are ENORMOUSLY friendly. I don't think I'll have any issues making friends and meeting people.
Good luck with your decision!
PS - Electricity is also very expensive, I read that it's 3x the kilowatt hour price on the mainland (not sure if that's true). Part of why I was willing to pay more than the rent I wanted to pay is because I'm in a condo building where electricity is included.