Dean, if you get a shot at a sim ride on a 737, you'd be a fool not to get at least some practice in a 737 sim.
I'm very current on the 737, but god forbit if I lost my job and was faced a 737 sim ride for a job I really wanted after more than a short period of not flying it, I'd pay for for as much sim practice as I felt I needed.
Much better taking on a bit more short term debt than being unemployed.