Maybe I can add a few notes to what's listed...
Pics are not fully revealing but....
Rear DR is Dura ace 7800 - so 10 spd (but throws for 9, 10 & 11 rear DRs were all the same - Brifters/Shifters determine the 'speed').
I can't tell which era the Brifters are, but they seem 'newer', not 8 or 9 spd - would need to see closer.
The Crankset is likely retrograded - It's Octalink - which Shimano started phasing out in '03, and for an Sworks bike it would not be there after that....
Depending where you ride, That crank , prolly a 52/39 and the current cassette, which seems to go to 23, might not be adequate in the smaller gears needed.
I would recommend, going to a newer Hollowtech BB/Crankset, like a 50/34 (or if you still wish a 52, then a 52/36) or even a 46/30...
The wheels - can't really tell what they are - so what age/era ? Going to 10 spd (if not already 10 spd) on that wheelset might not be possible...
Consumables - tires, chain, cables, bar tape - colored tires (other than black and maybe some gumwall) are visually old looking after the 1st ride... and a bit weird - to my eye...
maybe a saddle which works for you ?
so cost for those things
a newer crankset, like 105 + BB - in good condition (new BB, lightly used crankset) prollu 100+ to 150....
Then, if you can't do the work - mechanics cost...
It's a very nice bike, and unusual, in a good way... $400 ? I think that's reasonable - for someone who wants something nice riding, and different and quality...
The additional costs? Expected...
A really nice riding bike, similar in performance, new, but not the 'conversation piece' ? Can prolly be had , NOW, NEW, with modern tackle, for just below $1000 to a bit over...
if it fits well, The S-works is a nice bike
Ride On
Yuri
EDIT: Tire width, it 'should' be able to take a 32, on a 17mm (or narrower) internal width rim... 30mm tires were quite std back in the day...