We just got our '61 Tradewind and it does have the couch in the front, but I grew up with a trailer that had the dinette in the front and I really like that arrangment. My husband is planning to convert one of the gauchos in the back to a small dinette.
I did see one guy do a dinette because he was trying to accommodate all his kids. If I remember correctly, he made a U-shaped dinette in the front. I tried to locate the link on Google, but couldn't. There is another set of plans for a different type of dinette (If I understand your question correctly). But this might give you some ideas:
The Project - Dinette