Looking for Tandem axle trailer for x-9

[bigalwiggles]

Hello everyone. I'm new here but I figured if anyone has answers, it would be you.
I have an '02 X-9 with the original single axle trailer. I can't take it long distances because I just feel like it's too much weight. The trailer bounces a lot. I've taken it on a trip one time, about 2 1/2 hours into the trip it popped a tire and busted the axle. After a not so quick fix, I just decided it's cheaper to not tow it around much.

I've looked briefly online for a tandem axle with not a whole lot of luck. I'm not finding anywhere that has much of a market. My question is, where is the best place to look for trailers for said problem.

I appreciate any help.

Thanks

Alex