Err, the TE27 arms you decided to put off ending up going to Crostek for $USD70, including post........
According to the aftermarket catalogue, KE30, 55, 70, TE72, AE71 & AE86 are all BJ145. KE2x are BJ113
You need to actively search around the US for these, as they are worth nothing whereas in japan they are expensive.
Same as Agius's engine crossmember which I sourced via a guy in Puerto Rico
Edit: The aftermarket catalogue has no detail on taper or length of pins, though of course the KE20 and TE27 pin diameter is smaller than the BJ145