First Ironman: Am I too ambitious?

I love the challenge of completing an Ironman. I'm currently looking at a full in November or a half in December. I would ideally like to race the full but have quite a bit of travel this year. I have a 2 week trip in May and won't be able to to train and a week long trip in September where I'll be able to run and swim but not bike. I also have 2-3 other weekend trips where I'll have limited to no training time. Am I overreaching for the full and should consider the half or will the half be too much as well?

I'm 32 years old and in pretty good shape. Swimming would need work but I have a decent base for running/cycling. My goal would be to just finish. Not aiming for a podium or anything like that.