I used Roger Sheridan’s FG “tin” as well. But as far as I know as of a few months ago, you will need the 3.2 console and cross brace to use his tin kit for the 993 3.6 conversion.
Also as I understood it, the spacers were a work around to use the 993 console, cross brace and tin.
Here are a couple of photos. Not great admittedly. I recently performed a g-50 conversion so, I needed the different console and tin to get it to fit into an 86’ coupe’. As you can see I had to slightly bend the cross brace to get it all into the car while retaining the torsion bars. Etc…
I have yet to reinstall the muffler so I cannot comment on that.
But I can say, I never liked how the engine hung down low with the spacers and the muffler and HE were also very low.