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Thanks for your post! The balance shoe you have is the 15-199 Pivot Shoe. It should measure 17/32" thick but be sure to double check this when confirming the measurements. This 26-378 pivot bar is most commonly used with this shoe.
For the coil balance springs you'll need either the 1/2" Series 160 (uses the 15-150D double support) or the 3/8" wide Series 165 (uses the 15-204 dual support). To confirm the correct series, you'll need to measure the width of the coil.
Once you've confirmed the series, you'll need to look for a stamp/marking on the coils. This will help you to select the correct coil weight option. Please see the tutorial, tagged below, for a detailed explanation.
The cutouts at the top of the sash are made to house the tilt window latches. I believe you may need the 26-243A and 26-244A, but you'll need to find an existing latch to compare the specifications.
The specifications for all of the recommended hardware can be found on the website.