[Tiara Coronet] 1999 2900 Coronet New Owner Questions

[Lancersd]

Just purchased this Tiara. Newbie questions:

I have to repair and balance my 19x20 7 cup 1 3/8 props. Is there a better prop option? Considering replacing as the top end is a little slow at 4200 rpm's. Topping out at about 26 knots. 

Any recommendations for a prop repair shop in San Diego? Will consider Orange County and LA.

The head door knob/latch is missing. Can't figure out the replacement. Does anyone know the brand and style?

Thanks for any help.

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it is currently a 3 blade

[Makoman]

Head door latch is Perko brand, and my 2002 Coronet has 7.4 mpi crusader with 19x20 3 blade nibral and a #7 cup. 4400 and 4300 rpm boat will almost hit 40 mph. I cruise at 3200 and am running 27 mph.