NL Euro 100 - Turn showdown hand into bluff on the river IP?

Hi Guys.
This hand is an easy check back or shove imo. Hope your responenses clearify my pov.
Prima No-Limit Hold'em, €100 BB (5 handed) - Prima Converter Tool from http://flopturnriver.com

Hero (MP) (€112.20)
Button (€86.50)
SB (€100.50) stats: http://scr.hu/0raf/877fx
BB (€127.30)
UTG (€170.20)

Preflop: Hero is MP with 8, 7
1 fold, Hero raises €3, 1 fold, SB calls €2.50, 1 fold

Flop: (€7) 5, 7, 10 (2 players)
SB checks, Hero bets €6, SB calls €6

Turn: (€19) 5 (2 players)
SB checks, Hero bets €12, SB raises €31.50, Hero calls €19.50

River: (€82) A (2 players)
SB checks

Preflop
Std open from CO imo, BTN is 3b 18.6(19) so if 3b either 3 way or HU my plan is to call IP polarized.

Flop
I get HU vs. SB who seems loose agressive, I think his range on OTF is something like: JJ-22,ATs-A9s,KQs-KTs,QJs-QTs,JTs,T9s,98s,87s,76s,ATo,KQo-KTo,QJo-QTo,JTo. So my plan is to double barrel flop and any turn and check back river if we get to the river, as I don't think think any better will fold and any worse will fold.

Turn
According to my plan I bet again, but now I get c/r pretty small. I think Villans small c/r implies at best TP or FD, OESD and Gut shots. So I plan to call and shove the river if V. checks, because I think V. is giving up like 90% = c/f OTR if checked to and if he c/f second pair or worse my shove is +EV imo. So I think I should def. shove any river if checked to.

Thoughs?

thx.