I've just taken delivery of my LX90

and have only the standard 26mm Plossl EP. I was thinking of getting an GS0 superview 15mm and GS 2x Barlow as a stopgap measure until I can afford something better.
Will the GSO superview work OK in the meade and give me reasonable performance with the 2x Barlow.
How would the 15mm/Barlow combo compare in performance to a 7mm eyepiece.
By the way we've had the driest March on record here in Tas and since the LX arrived its been continuously overcast and it's forecast to rain tomorrow.