Elastomers are available from this gent on here..... @johndeverill
I got myself a couple of sets a while back - still haven't fitted them - but the kit etc is comprehensive.
I have a feeling John my do seals as well?
Give him a shout.
their ref for Manitou fork with inner with 1-1/8 stanchions : AN-11-SH (1-1/
They have also dust seals for seatpost manitou in 1-1/4
and all forks brands that use often standard seals in 1" inner legs too
Hope that helps
Drop me mp if needing more