Stalled on the First Page

I'm in a competitive niche, ranked #10 and #11 for two medium keywords. I've been as high as #4 for both, but I've lost a lot of links that I bought overtime. My site is PR3/PA46/DA37 and is actually more authoritative than most of the competition (a few are on authoritative domains like reddit, youtube, but most are other websites like mine). I have intentions of reaching #1 for both, so I'm curious: what kinds of links are people buying/using in 2013-2014 to secure Top 3 positions? I feel like where I'm at now, a 200 High PR Homepage package from the BST Section would seal the deal but I haven't pulled the trigger yet.

Thoughts?

It might do it or it might need more depending on the strength of the link juice coming from those links. Won't know until the dust settles from that first salvo.
Just choose your weapons carefully and you should be good to go.

^^ True, but I'm at the point where nothing besides High PR Links gets my site to even move. Authoritative guestposts (on high DA domains) , .gov/.edu contextuals, etc ... only PBN links seem to really push me upwards now.