Advice on selecting a tube amp

Sold all of the Sunfire and Martin Logan system when we retired and moved from a huge condo to a 46' sailboat. I'm missing the music.
I am an audio analyst by trade and tend to pick my music apart.

I've got about $1500 to spend and a pair of Sunfire CRM2s. They are small enough for the boat and love the ribbon's imaging capabilities. 90Db sensitivity and 8 ohms.

I'm not physically able to do the modding and such, so I am looking for reliability. Researching the Music Angel turned daunting when I read about the amount of work some of the guys needed to make them perform. Hands shake a bit too much.

I don't listen to loud music much anymore, except a little Pink Floyd. Mostly instrumental Jazz and some Hawaiian slack key.
I want to make the move to tubes and prefer to buy one which I will keep. I'm in over my head, but I like it like that.

I need and really appreciate any suggestions you guys would share.