I got my 5K from a 91 model van...with 85K Kilometres on it, and I paid $400:D
I used my 4K flywheel and a 5 speed from a KE70 with a KE55 extension housing so I could bolt it in my KE35, I have not stopped smiling since I put my 5K in, I put it in a year ago...and it has not missed a beat. It's the only K engine I have had that actually has all it's oil in it 3 months later when i go to do an oil change haha
Mine has loads more torque than any 4K I have had....although it is also about 200K kilometres and 10-12 years younger than any 4K I have had....but it goes almost as well as my SC 4K's.....The 5K itself is dead standard, so I can't wait to see what happens when I decide to extract a little more out of it :D
I LOVE 5K's :(