Live PLO 5/5 - Top set on 248r board - shallowish stack

[franknagaijr]

My stack is about 900, and everybody's got me covered. I'm the SB for 5 plus 5 to match the button straddle - w/8879 and six of us see a flop

248 rainbow (pot size is ~60)
Given the wrappy draws and my vulnerable 'nut high', should I lead out early, or go for a check raise here? If the check-raise becomes a free card, is there anything other than a board pair that I can feel good about?

If my stack size were 500 or 1600, would that change your thinking about the line you recommend?

thx