ok, im a noob when it comes to the toyota pickup world...this community looks like it will be able to help bigtime.
   
the car is an 88pickup EFI RWD i got for free from my grampa it has 81k on the original 22re but is still sturdy
heres the problem, i changed the oil about a week ago and noticed a leak, i tightened the drain plug and noticed the seal from around it all broken up, it was old and i forgot to change it...so when my dad and i went out to buy one and changed it but it still leaked, i got new and different seals every time i changed it. i went through this process about 4x, i never actually used the official OEM seal so i dont know if thats my problem...but it still leaks
my father wanted to be a hero so he went off and used a self tapping bolt on the pan  , thinking the original threading was stripped...so now i have an oil pan with a non OEM bolt or seal...and it leaks, i REALLY dont want to have to replace the pan and fork up more money than the car is worth for swapping it, if ANYONE can think of a way to deal with this i would be very grateful       pre-thanking anyone that helps out