is there a 1/2 bath avaliable ?

We almost bought one before. It was a fifth wheel. The second bath was part of the kids' suite in the back of the unit. It had an outside door, which was very nice because you could access the commode from outside, which is convenient when parked and when making pitstops while towing. We usually use the RV's bath when towing because the public restrooms at most stations can be really nasty.

Heartland 5th wheels makes one with a bath and a half..

2014 Palamino Sabre 301BHDS TT...Google "bath and 1/2 travel trailers" and you'll find several.

The 2013 Class A gasser Coachmen Mirada Bath & 1/2 RV also the 35DS' And the Coachmen Catalina 40TBS TT.

Yes, there are a few out there. I'm sorry I don't have specifics, but I've seen them at shows, etc.

Winnebago Vista 35B, 35F for two.