[cctalk] PDP-8/s Engineering Drawings?

I have recently bought a DEC PDP-8/s. It hasn't been powered on for about 40 years before I got it. I cleaned it and did some repairs on it (glued broken flip-chip handles, replaced all front panel lights, restored the acrylic front panel to as new condition and built a new switch mode power supply for +10V and -15V). After testing each flip-chip individually for dead shorts on the power rails I reassembled the flip-chips into the backplane and on power up it shows signs of life, but has a number of problems I will have to debug and fix. Does anyone here have the original Engineering Drawings or good PDF scans of the drawings? There are reduced copies of the PDP-8/s Engineering Drawings in Appendix A of the two PDP-8/s Maintenance Manuals on Bitsavers, but I have not been able to find scans of the actual Engineering Drawings. Some details in the reduced copies in Appendix A are not legible. Thank you Tom