I guess that depends what route you go.....
If you go Merc route just break out the lube and get your azz ready for a pounding....:rofl:
If you go with some engines from a reputable builder you'll be in it for a fraction of what you'd pay to Merc. I think you could do a set of good engines for around $40-50K plus the cost of new drives, transom assemblies and whever else it needs.
So yeah, I guess $100K is a round-about figure!
Personally, I think $100K for a de-rigged boat is very high for a 2002. I'd go $50K highest but that's just me... the glass aint worth much unless you wont some fancy Cig emblems!