As discontinued parts become the norm, we sometimes have to pay the going rate for decent used parts. The last B2600i I saw in the parts yard had basically nothing of real value to me on it; it did have tow mirrors on it but in horrible condition.
I just paid $75 plus shipping to buy a used, no-longer-available-new window regulator for my 1971 VW convertible. And about $100 more for supplemental door parts to install while I'm in there.