You can ignore the rubber boot, it's not a problem without it.
ok, so the loaner is almost ready. [thanks: Frame and parts from: Chukker Norris, more parts: thedutch, dublinkevin and io]
I say almost because i was going to clean and re-grease but i discovered i cannot move the seat post. it may simply need someone stronger than me :-/
Also, the rubber boot of the v-brake is split - i 'll swing by a shop for one tomorrow :-)
You can ignore the rubber boot, it's not a problem without it.