Anything is possible, how deep are your pockets haha
The CA18DET is allowed under the new laws, of course brakes and necessary ancillaries need to be upgraded,
Welded roll cages are out and bolt in half cages with bends are not allowed
Im not up to speed on that engine in terms of mounting, but I hit the firewall and I would be inclined to say you would trim the existing trans tunnel and weld pieces to complete the tunnel
Gearbox Crossmember brackets can still be utilized but I lugged it between the chassis rails, however as the box is quite long, and the lateral brace will need to be cut from under the floor for the shifter to come through
You will pick up on allot of these things, but don't fret there are solutions for everything, my advice, check and double check and don't be afraid to give it ago