Simon if you have time before the next Friday night races , see if you can make a a deep trans pan out of 2 pans , cut the bottom out of one , and the lip off the other ,weld them together , make a drop down block for the filter .
it will help a lot with the flash temps
And over the winter make deep pan out of 1/4" plate steel to act like a girdle to help with case flex.
The same can be done for the diff cover