For about $25 per year, you can get a subscription to alldata diy, from which you can download and print your own shop manuals, including--in most cases--the vacuum and wiring diagrams. Worth it to avoid a vast loss of timw and effort in a project like yours.
Makes ya' wonder,tho--why did the PO pull all the vacuum hoses loose?
Also use the search function at the bottom right; try something like "700 vacuum diagram" and start from there.

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We have met the enemy and they is us. [Pogo] S70 T5 cop car : Rough Rider tires& suspension, Walmart fog lights, eBay speakers, ambiance by Pall Mall, trim by Le Duc d'Tape, 8-channel THD by OEM amps