here's a comparison of what I have found that will fit the FZ09, #1 is the stock plug, the wider plug is from magneticdrainplugs.com and has a torx 45 with an o-ring seal
model# 1074m about $7 plus shipping, the smaller plug is from belmetric.com and has a 6mm allen and is shown with the old crush washer in place model# DP14x1.5AH about $2.90 plus shipping. The wider one has a magnetic end and I think could have the o-ring groove widened to use the crush washer, I currently like the small 6mm allen model it is coned at the top to align the crush washer but both offer better clearance and the guard could be reduced in size also for matching clearance, all photos show the
crack in between the guard and plug from a minor impact to the guard only. The damaged pan will be repaired and strengthened with additional bottom plating to match the new plug and give a recessed look- will post when finished.