Yes, the C5 bolt works for the rear tie rod. In theory so should the one for the D3. I haven't checked on the camber bolt actually. I'll get round to that.
I've been doing exchange PS hoses for a while. Not AC hoses though - they're too hard, and don't really fail unless they get trashed when changing the condenser.
I set up an online store during 1st lockdown last year, but never got round to going live with it
Boot grommets have been selling steadily on ebay but the fees are too high for the larger stuff.