I have a 1991 D110, currently with a 200Tdi and LT77 5 speed manual. I know very little (i'm sure this is now disgustingly obvious to all of you reading this), but I am so excited and scared (mostly excited) to move forward with this project. I already have both feet in. This motor is toast. I need my defender to be quiet, be able to routinely drive highway speeds, and be an automatic. The only off-roading it will do is on the dirt roads of colorado that get me to my fishing holes (but it will do a lot of that), and of course it will get a lot of work in deep deep snow. I realize I'm transforming it into a machine that purists may despise, but I've dreamt of having this as my daily driver since I was a kid. This will be my dream come true.
The LS3 430hp engine is on the way with a "connect and cruise" 6L80E automatic transmission. I chose the LS3 with the 6L80E based on its compatibility with the LT230 by using the products developed at RW-eng.
I look forward to hearing from you, and I'll keep you up to date on the project if you want.