I dont think so. Luke is a trained fight[er] but [is] hardly experienced with Krayt's force power and his speed.
You're right, it's too bad Luke has never faced off against a Lord of the Sith before. Oh, wait...
The team takes a few rounds but Lukes got nothing on his TK,
Luke has his share of impressive TK feats, whilst Krayt's, while impressive, are almost non existent.
and lightning imo.
He has a lightsaber. Even without, Luke was able to take in Palpatine's lightning to an extent as well, even if the effort didn't last long.
Scourge also isnt good enough to beat him 1v1
Then he'd better be glad this isn't a 1v1 fight.