It would be best if you could be close to the facility for treatment and medical aid if you have any side effects. Even after surgery, depending on what kind you have, travel in a car is painful, so the closer you are to the doctors, the better off you'll be. There is a lady here named Soccermom who is very knowledgable and hopefully she will respond to you. Do you know what kind of surgery you will be having, whether it is Low Anterior Resection or Transanal Excison? Also, the pathology of your tumor is important. I did not know any of these terms when I was diagnosed and let my doctors tell me what I needed. I never even asked a question. But I think they did ok for me. I am one year out and seem to be doing well. I have learned a lot from this website and the internet in general and once you have the facts of your case, you can find a lot of helpful info.
I had a similar path to diagnosis, hemmorroids since I was in my 20's (no kids, though), and continuing off and on for years. At age 49, noticed more than usual bleeding that did not go away. I waited 8 months before having a colonoscopy. During colonoscopy a 2 centimeter polyp was removed piecemeal. Pathology revealed an invasive well-differentiated adenocarcinoma arising in a tubulovillous adenoma. It had invaded through the muscularis mucosa and into the submucosa with positive polypectomy margins. (that was directly quoted form the pathology report). An EUS was performed 2 weeks later after various CT's and ultrasounds. The EUS diagnosed me as Stage 1, with an intact muscularis propria (T1NOMO). My tumor site was 7-8 cm above the anal verge.
I went into surgery (Low Anterior Resection) with a 50-50 chance at having a permanent colostomy, but came out with the temporary ileostomy. Post surgical pathology indicating no remaining cancer cells at all and no lymph node involvement. Neither chemo or radiation was recommended. I had reversal of ileostomy surgery 2 1/2 months later. I am doing good after one year, but it was a long road to recovery.
This must all sound like greek to you, and even though I was like a flamingo with my head buried in the sand, you have children and that makes it way more difficult because you need to know what to expect and get extra help for their care while you recuperate. I wish you all the best - it sounds like you have an early diagnosis and that is good.