A 67,being the best year of early production,is always a plus to start with. Verify that the VIN number on the tag matches the one stamped on the rear tail light brace inside the van and also on the top of the bell housing hump. Tags are easy to swap so it may not match. Verify that it does have a dual master cylinder(rectangular not round). Check the undercarriage front to rear on both sides. Its the single most important thing since its unibody. Dont worry about a few missing parts,I can always get those for you. Check the roof for damage,gutter rot,etc. Check the steering for excessive play,brakes,and suspension(springs,shackles,sway bar end links,king pin play) for wear and missing components. SNoop in the doghouse for wiring nightmares,radiator condition and oil leaks. Taking a little extra time now will save time and money later.