FWIW. The frame will probably be "okay" to ride ([COLOR= #808080]a friend had as severe a dent in a vintage Paramount which he rode without qualms other than his concern for the cosmetics[/COLOR]), but I think that if you pay more than $100US, then you will probably be unhappy with having bought it vs. another frame, particularly if the ready-to-ride BASE model JAKE (which is what that frame presumably is) doesn't cost that much ...
You have to tell me, is the particular frame Scandium OR is it plain aluminum?
Does the BASE model JAKE come with a Scandium OR a plain aluminum frame?
What fork does the BASE model JAKE come with?
That may be a long way of saying that if the BASE model JAKE comes with a Scandium frame then I recommend that you simply buy one of those, move your existing parts to it AND/OR upgrade the particular parts as time-and-wallet allow ...
BECAUSE, even if that dent doesn't present a structural problem, I think that unless you BONDO it, I think that the cosmetics will bother you after a while.