I did make the tongue longer on my home made trailer a few years ago and as Bedlam stated, you have to watch the clearance of the jacks while making a tight turn.
Being that I could not use the camper fold down step, I welded a platform onto the tongue.
It worked for many years without any issues. The only exception was, I could only tow that trailer .
I have since bought two other trailers and I have now changed the recvr. to a 2.5" Curt with a 24" extension which tapers down to accept standard 2" accessories.
Here is the old set up with the extended tongue :
BTW, yes that's an Arctic Fox painted on the trailer . My DW painted it to match our previous TC and I'm smart enough to not paint over it . :W
