The final component selection resulted in twin bikes for the girls with the following build specs:

• Giant Seek 1 frame set in anodized black finish
• 30.9mm QR seat-post clamp
• Giant Connect flat-bar
• Giant Connect SL Stem
• Hone HB-M600 32H front hub axle modified from QR to 10mm solid axle and Y3C898010 Hone Hub Nuts and Washers. Laced to A719 double eyeleted rim
• Hone FH-M600 32H rear hub. Laced to Mavic A719 double eyeleted rim.
• Hone ST-M 600 9 speed dual control levers
• Jagwire Hyflow hydraulic lines (hot pink)
• Jagwire Ripcord full length derailleur cables (hot pink)
• Hone BR-M600 brakes
• Hone 203mm center-lock rotor -front
• Hone 160mm center-lock rotor - rear
• Michlin A3 Protek max tubes 700 x 35-48c Schrader valve
• Schwalbe Marathon Supreme
tires 700 x 40c rear, 700 x 50c front
• Selle Italia Diva Gel lady specific saddle
• Hone RD-M601 SGS low normal rear derailleur
• Hone front derailleur 601 dual swing
• RaceFace Deus XC crankset (pink) 175mm; Turbine rings 44/32/22
• RaceFace Team X -Type XC Bottom Bracket
• Ergon GP5 grips; bar-ends over-taped with Shimano Pro pink floral bar-tape
• SRAM PG-950 11x34, 9-Speed Cassette
• SRAM PG-991 Chain
• Bordo Combo Lite 6150 Link Lock, 85cm, Black; mounted above stem on HED Adjustable Lolipop
• Profile Design seat mount aero duo cage mount.
• Profile Design water bottle cages x 3
• Camelbak Podium water bottles x 3
• Topeak DeFender™ M1/M2 Set with Pedro's Tulio on rear fender clamp
• Twin Evo Spacebar Bicycle Handlebar Computer Mounts clamping a light mounting bar below the main handlebar.
• Twin 15/45 degree eliptical beam headlights
• Twin Serfas TL-200 rear lights

Yeah - I pretty much ended keeping the frame and selling off everything else. Still can't find a bike on the market they'd want to swap for.