I think you're being very smart.
You just may like it as is and save yourself a lot of work and time ... or you may hate it and then you'll know for sure that the extra work and time is worth it.
I bought my truck with the Musatng II IFS already in it, so I can't compare, but I sure like it as it is. It also has 11" front disc brakes (drums in the rear) and a double-bay master cylinder, so it stops just fine.
I thought I was gonna want power steering, but after driving it with manual steering, I've decided it isn't necessary at all.
Have fun!
