in July 2014, I bought a 1985 K100 RS for a restoration project. It was not running and sold for spare parts. Some parts were missing and some bulk in a box. It was a project running over one year and finished a few days ago. Many hours working in the garage and lot of fun.  I have replaced lot of parts because I wanted a bike like "new" :

battery
tires
fork bearings
clutch
front and rear master cylinder kit + fluid container
calipers kit
break braided stainless hoses
stainless steel fastener kit
alternator bearings
output shaft (for a 12 rivets) + bearings
Oils seals
Corbin seat
K1100 center and side stand
Every hoses and rubber parts
windshield
... and more

As I speak french, the full story was posted on a french BMW forum . Even if you don't understand french, just view the pictures on the following link and .... Enjoy   : 
http://bmist.forumpro.fr/t93905-nouveau-projet-de-renovation-k100-rs-1985

Updated : all pictures are now available at this link :  http://hrsbstaff.ednet.ns.ca/bvogel/1985-k100rs_rebuilt/index.html

Wow, that is a really nice job!  Well done!

Welcome and very well done!
You did the full package, impressive.

Cheers

Who is this guy?
Just my twin brother
I hope his next reno will be a

I will try to make a web page with all his pictures.

So it runs in the family...

Holy crap!!!  Did he actually POLISH the top of the block where it is hidden behind the fairing and covered by the air box???

Wow c'est un excellent travail

Crazy Frog wrote:Who is this guy?
Just my twin brother
I hope his next reno will be a

I will try to make a web page with all his pictures.

he did a great job Bert

amazing detail

I tried Google Translate and even if not perfect, you will be able to follow my project on the french forum : 
http://bmist.forumpro.fr/t93905-nouveau-projet-de-renovation-k100-rs-1985

Sure did a nice job. Me thinks that maybe the Kpox is genetic?

I made a slide show of all the pictures.
Click here to see them