[BadCookie]

If it were me, I’d just rebuild the site manually on something like Squarespace (or maybe Shopify) by copying-and-pasting the text and downloading/uploading any images you want to keep. I didn’t see any interactive features in my brief browsing of the site, but if there are any, it would influence my choice of which service to use.

The hardest part technically seems like it will be transferring the domain name.

[sgentle]

Absolutely second this. I've done it both ways and the one where you're on the hook for website updates will eventually wear you down, no matter how good your intentions.

Most recently, I helped my hairdresser get Squarespace set up for his business. We had a few follow-up chats for the things he couldn't figure out, but other than that he's been fine updating it on his own. Most importantly, there's a frontline support team and it's not me; I'm happy to help, but I don't want to be on the critical path.

[joemazerino]

This. Building something the client can manage or see herself manage is the essential step in migration process.

Macromedia 2004! Wowzers