Pig guts is actually the only porcine viscera I've eaten before. It's not bad at all. The prep does sound rather unpleasant and smelly, but it can't be worse than the butchering you've already done. I believe the colon is nastier than than the small intestine and less eaten. But then, in my high school bio class we were given a lab book for fetal pigs, and came to class and our crazy teacher had a fully-grown, fresh dead sow on the lab island for a group dissection. When we opened the abdominal cavity, the smell was so foul we just about vomited; teacher helpfully told us that the human abdomen smells the same during surgery. This was without having dissected the intestines.

Curious, what did you do with the lungs? That's one part that I think was commercially banned for human consumption in the USA in the '70s. Even if it wasn't, it's rarely sold fresh as I understand it does not keep well at all even under refrigeration. Pork lungs are used used in Fillipino (bopis, kilayin) and Cantonese cuisine; Europeans certainly use sheep and cow lungs (Greeks, French, Scottish; haggis, anyone), but I'm not aware of western recipes specifically calling for pork lungs.

Pork intestine, on the other hand, is ubiquitous.