11/35 questions

I'm just getting to know my "new" 11/35 and have some questions about the current configuration. 1) Was the M981 (unibus jumper/terminator) unique to the 11/35(40)? It's not in the field guide but is mentioned in the Unibus Troubleshooting Manual. I'm assuming it provides near-end termination for the bus but it's curious that the termination portion is on the far side fo the jumper. The only other examples of the M981 that I've seen are in other 11/35 systems. 2) The system has 32KW of core - 8K in the chassis in an MM-11S system unit and 24K in a separate CMI Expandacore box. The MM-11L unit is a little strange in that it is composed of the expected G110 control module and G231 drive module but the core stack is an H215 (parity) rather than H214 (non-parity) unit. Does this matter? If it does, how would it affect operation? 3) This is a "vanilla" system with none of the available CPU options. It does, however, have an M7840 EAE board (KE11-B) which supports hardware multiply and divide. Does this make sense? 4) The system is in a BA11-DB(?) case - 10 1/2" high with H750 power supply on the right side (from the front of the chassis). As received, there are no covers for top, bottom or power supply. Anyone have any spares, or if not, pictures and/or measurements of the original parts? Shouldn't be too hard to fabricate but it would be nice to be as original as possible. OK - that's all for now! Thanks, Jack