There are a couple things I think you can do that might be helpful. I was having a crappy time trying to go through some of the BT upgrades to R3 myself, although mine revolved around virtualbox, which for me I guess was kinda inevitable.
You can do the
without having to go through the hassle of completely reinstalling BT5R3 on your OS, and then just add the build upgrades individually. I have taken the liberty to list them all here:
apt-get update && apt-get dist-upgrade
apt-get install libcrafter blueranger dbd inundator intersect mercury cutycapt trixd00r artemisa rifiuti2 netgear-telnetenable jboss-autopwn deblaze sakis3g voiphoney apache-users phrasendrescher kautilya manglefizz rainbowcrack rainbowcrack-mt lynis-audit spooftooph wifihoney twofi truecrack uberharvest acccheck statsprocessor iphoneanalyzer jad javasnoop mitmproxy ewizard multimac netsniff-ng smbexec websploit dnmap johnny unix-privesc-check sslcaudit dhcpig intercepter-ng u3-pwn binwalk laudanum wifite tnscmd10g bluepot dotdotpwn subterfuge jigsaw urlcrazy creddump android-sdk apktool ded dex2jar droidbox smali termineter bbqsql htexploit smartphone-pentest-framework fern-wifi-cracker powersploit webhandler
All of the above, with the addition of multiforcer
Hope this helps!!