Part of the problem for the Forum and (more to the point) any associated service is it has to do the job properly. Presumably it's been decided that to visually check a crank and if an outer main is all that's obviously worn just replace that isn't good enough to put the name to.
Besides the bearings are available in the Marketplace and even if you can't do it yourself any old engine builder/race workshop/motocross dealer will be able to point you in the right direction. No one sane would ship a crank across the country for such a small job.

It's all very well me telling someone that just replacing the one wizzy bearing will fix the problem and in the short term I'm sure it will. If you're not shy with the tools a good few hours, a gasket kit, the offending bearing and (if you fancy it) a couple of new crank seals will see the bike working again. But I know Andy and Steve well enough to know they wouldn't run such a crank in their own bike and won't be offering any such "service".
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Please do not PM me technical questions, if you can't find it on the Forum start a thread