I hate it when you type up a lot, and the post doesn't go through and you cant recover it lol.
Anyway, No I totally get it. Which is why I'm posting as well. Your option, the way you went is very much a legit option. Its a Warrantied (Well the install isn't unless you'd warranty the install), Its clean. I've still yet to see your firewall work to cover the motor. I saw the other guys and didn't like the huge box cover. When its clearly not needed, the engine doesn't seem to portrude into the cabin at all. Which is why I was thinking of using some wire to hold some blocks into place on the motor, and then some sheet metal and beat it into place. The Blocks will be used to space out the engine from the firewall.
Installing a motor that is hard to come by but easy to install vs. an engine that is super easy to come by but requires some DIY... I mean while were at it, we can do a 2JZ or RB26. You want to save space? Nissan just released a 400hp 3Cyl Turbo Motor that weighs a whopping 88lbs! Mitsubishi 4G63 Turbocharged 4Cylinder engines are known for outputting 1500whp. Stock 4g63's can put down 800whp. Nissan SR20's. I just had some guy mad at me for doing yet ANOTHER LSx Swap... he told me "Why not swap in a Coyotte, They blow the LSx away!" ... Yeah Uhm, No! In so many ways, No!
I will argue the LSx, Just because I know first hand what it is. Yeah its Pretty long, What are you expecting? Your adding another row of 4" Pistons. But the gains outweigh the work done and the Cost. At this point, I'll put an LSx in anything! lol. Unless another motor is found that can dish it out with the competition.
This same setup with just a cam made 711whp!
https://www.youtube.com/watch?v=sHGxrAENwMs