My Pokemon Diamond Team (no emulator)

I bought this game recently I nearly finished just my two last gyms.Do you think this is a good team.

Infernape Lv 42
Gastrodan LV40
Stravia Lv 38
Gabite Lv 32 (training in progress)
Kadbra lV 40 (Will Soon Evolve When I trade with my cousin
Luxray Lv 43

Should I replace Sneasel with Gabite

you should catch a good water type like Gyarados