Have a hunt around the internet for a 'lower league shortlist' to load into your game... i know for a fact that there are some out there for english league 2 etc which would also work well for scottish 3rd div. Failing that have a look at the free transfer recommendations here:
http://www.fmscout.com/a-football-manager-2013-best-free-players.html
Some of those are probably happy to settle in the lower leagues. Good luck.