I DONT THINK YOUR CAR WILL BE DAMAGED BY TOWING IT WITH THE REAR WHEELS ON THE FLOOR, LAST THURSDAY I SPOTTED A W124 BEING TOWED ALL THE WAY FROM LAREDO TEXAS TO GUATEMALA OR ANOTHER CENTRAL AMERICA COUNTRY.

WISH YOU THE BEST LUCK WITH YOUR ENGINE SWAP AND IF YOU'RE WILLING TO SELL A SET OF FUEL PUMPS AND THE PROTECTIVE "BOX" FOR THESE, I WILL BE HAPPY TO MAKE AN OFFER.