I am up in the air about putting a 1299 engine in my 1199s. I always want faster and more power. I have spent a fortune on my 1199s that I will never get back if I sell it, or else I would and I’d buy a new v4s/r and start over. I’m considering a 1299 motor is I can find one with low mileage from a trustworthy source, if the two actually exist. My question(s) to those who probably know more than I do, is… is it a direct swap and pretty seamless, or are there specific challenges that will arise and what modifications if any, are necessary in this endeavor? Thank you, all.