Recomendation I make to auction winner with choice of many at so much a piece " take all of them to make sure you get the right one." You have 10 months to try 'em out before you offer the others into the 2017 Christmas give away for shipping (-;I'm leaning strongly towards the 450S, although the 1765 is an option. I already have a line on a 450S at a good price.
Craftsman 5.5" - 6" jaw opening - 15 x 8 inches (My current vise)
Wilton 600S - 10" - 156# - 26.3 x 15.5 x 11.9 inches
Wilton 450S - 7.5" - 71# - 20 x 10.6 x 8.9 inches
Wilton 1765 - 6.5" - 70# - 16 x 9 x 8 inches
Wilton C-2 - 7" - 92# - 14 x 9 x 7 inches
Wilton 400S - 6.5" - 62# - 18.9 x 9.8 x 8.9 inches
Wilton 350S - 5.25" - 44# - 16.1 x 7.5 X 7.9 inches
Ridgid F-60 - 6.3" - 58# - 19.38 x 9.79 x 8.18 inches