I CAME ACROSS A 1554 CUB FOR SALE OWNER SAID ENGINE RUNS GOOD BUT HE HAD TO HAVE A PIN IN THE TRANSMISSION REPLACED 3 TIMES AND WAS TIRED OF THE REPLACEMENT HASSLE AND BILL AND BOUGHT A NEW SIMPLICITY. HE IS WANTING 200.00 FOR IT AND FROM WHAT I CAN SEE IT LOOKS REASONABLY CLEAN. HOW HARD IS IT...