DIY PVC Bluetooth Speaker

I'm fairly new to making speaker enclosures, I've made a couple for past vehicles that have worked very well, and I've been looking at making a portable speaker for a while.

Basically I watched a YouTube video where someone took an 8" wide PVC pipe and made a speaker, but I didn't much like how it was built, tons of air leaks and poor build quality.

The design I'm looking at is similar to what was done on this post: https://www.diyaudio.com/forums/subwoofers/219481-pvc-enclosure-tips.html

I've been looking at what speaker might be best for this and looked through forum posts for ideas, but nothing really stood out as being helpful, the only thing I'm really struggling to figure out is what type of speaker is best, I plan on going with the 8" pipe and lining it with cork, length would be determined by the speaker type, I was looking at 6.5" full range speakers but I'm not sure this is the best option. As for ported / sealed I was thinking I'd try my luck with a totally sealed enclosure, as I feel that would be easiest.

It might be a long shot and I might be in over my head but I thought I'd see what experiences / inputs you might have, thanks!