The test against France is in the test window, so is there any reason to think that Houston wouldn't be available if picked. I would also look at any option to give Moore, Hooper, Foley and Folau a rest as they've had a lot of game time this year. Under no circumstances would I think they should be considered for the Baa Baas game, and time on the bench against France would be valuable also.
Aren't Toby Smith, Stirzaker and Kellaway also over there? Surely they will play against the French Baa Baas.
So I'd be looking at:
France
Sio, Latu, Ala'alatoa, Douglas, Simmons, Fardy, Pocock, Timani, Genia, Cooper, Naivalu, Hodge, TK, Speight, DHP. Bench Moore, Robertson, Kepu, Arnold, Houston, Phipps, Foley, Folau.
French Baa Baas
Smith, Ready, Ryan, Carter, Douglas, Dempsey, McMahon, Houston, Stirzaker, Cooper, Morahan, Godwin, Perese, Naiyarovoro, Kellaway. Bench Hooker (?), Slipper, THP (?), Lock(?), Back row (?), No 9 (?), No 10 (?), Outside back (?).
All my queries are that I don't think any starters or bench players for Ireland should be in this game. They ought to be in Ireland getting acclimatised and training specifically for the test two days later.
Looks like an absolute shambles of a schedule to put the Baa Baas game in mid week without having a full squad available for it.