My camper reaches 6000 lb with all the souvenirs and even with TL tie-downs I observe the 1.25" tubings pretty carefully.
Seems that with rubber mat camper weight holds it by friction as there is no way the ties could carry that much.
My front tie-downs were shaped into quite jigsaw puzzle as the frame is bend and twist at the mounting point. Would take me weeks to fabricate something to fit on try-by-error mode.
If you have C&C frame, those might be straight frames and easier to fit.
But once again -rear tie-downs are easy to make, but I did not see any better way than send TL $350 for front set.