keel separation

Hello all, thanks in advance I am considering purchasing this 1984 catalina 36 and completing the two Catalina engineered repair jobs myself (attached). I have spoken to some people that havn't seen the boat but say I will need to drop the entire keel and reseal it, a job I can't/dont want to...

i had a slight separation between the aft end of the keel and the hull. I used a flexible epoxy to repair. Once the travel lift moved our sailboat up, the crack reappeared. I am thinking that tightening the keel nuts should solve this problem. But, our boat is 1500 nautical miles away and I do...