7ft x 4ft CAGED & RAMP GALVANISED TRAILER ( BRENDERUP ) ?

HERE I HAVE MY GARDENING TRAILER I HAVE USED THIS FOR 3 TO 4 YEARS AND NEVER HAD A PROBLEM WITH IT I USED IT EVERY DAY. IT IS A 750KGS WITH ALKO RUNNING GEAR AND TOW HITCH I HAD THE CAGE MADE PROFESSIONALLY IT IS 3FT HIGH MAKING THE INTERNAL SIZE OF 4FT HIGH YOU CAN HAVE A FULL COVER THAT GOES OVER THE TOP OF IT WITH A ZIP OPEN BACK TO LOWER THE TAIL GATE IF YOU WANT TO KEEP YOUR ITEMS DRY. I HAVE NOW PUT 2 NEW TYRE`S ON IT 2 NEW WHEEL ARCHES 1 NEW 12MM EXT PLY 1 NEW LIGHT BOARD THE PLY FLOOR HAS BEEN STAINED WITH 4 COATS OF RONSEAL TOTAL WOOD PRESERVER WHICH IS A OIL BASED STAIN THAT SOAKS IN, NOT LIKE PAIN THAT JUST SITS ON THE TOP UNTIL YOU WALK ON IT AND SCUFF IT OFF THE WHEELS ARE 13