Hmmmmm......... don't like to be the bearer of bad news but from the measurements I've done with the 138 red motor from an LJ Torana versus EH Holden sump it would appear that the EH sump wins... just!!
It's hard for me to do exact measurements as the LJ motor is way up in the back of my shed with lots of Sh#t around it making it difficult.
FB Holden Grey motor sump as fitted to the car with original kingpin front has approx 1 1/2 inch clearance between sump and original drag link in straight ahead position.
Didn't do lock to lock measurements.
EH sump is damn near identical in shape to grey motor sump but the grey motor sump is 3 inch shorter at the front of motor so that explains why EH sumps fit red motor conversions but we already know that
I reckon the LJ sump would still touch the drag link ( perhaps only just)even though it has the sump bowl at the rear.If I was out in the bush on the side of the road with a badly leaking sump with no replacement sump available other than an LJ one I think I'd get it to fit.... with the help from a hammer

.
That said, the pic of your sump, Farkam, seems to be a little different to the sump on my LJ motor,yours seems deeper in the bowl and the curve from the bottom of sump to the start of the bowl in yours seems more sharper than mine.Perhaps yours may fit OK but then you haven't got an oil pickup either.
I'm not into Toranas so don't know whether they also had different sumps??
I'd like to be able to give you a definate Yes/No answer as to fitment but can't add any more than what I've written.
I know it's a pain in the arse but if you had an old red motor ( just a block would do) and could quickly whack the Torana sump on ( couple of sump bolts would do ) and engine mounts and do a "dummy fit" into the engine bay then you would know for sure whether it would fit or not.
On the other hand.........
EH sumps and pickups can be found, you just have to look for them.They sometimes appear on Evilbay and go from approx $60 to about $120 but I've heard of blokes paying bigger money for them.
I've bought complete EH motors just for the sump when I've found them within a reasonable travelling distance from home.Sorry, but I haven't got any spare EH sumps.Last motor I bought for $50,.. 149 red motor from a HD and fitted with an EH sump.Motor runs fine and EH sump was a bonus.
Terry.
I can't think what to write here so this will do.