I'm an 'almost' 78 year old granny, and I've been longing to get a small camper. Still working out the best way to put the bed in my Touran. I don't want to build anything, but will hunt around for a bed base, using whatever I can find. I also have a little dog. My son lives in Wales, 3.5 hours from me, so it will be lovely to get there.
If you ever pass Talybont again you can take the canal path all the way through to the canal basin in Brecon. It's a couple of hours walk but is great on a warm, dry day. There's also some great bike trails in the area