Build engine

Tell it the sets you own; it shows what you can (nearly) build and the exact parts to buy for a target.

🧱 What you can (nearly) build

%	Set	Name	Buy pcs	Lots
100%	10256-1	Taj Mahal	0	0
93%	10189-1	Taj Mahal	420	21
81%	10230-1	Mini Modulars	254	95

🎯 Build Explorers' Arctic Polar Express Train — 4% complete

Buy 1,445 pieces across 397 lots.

🛒 Source the gap from the parts marketplace

72 of 397 part-lots available now (18%) · 325 still to import. Total-to-door R728 across 1 order(s) — parts + per-seller shipping.

BrickBits Spares · 107 lotsR728 (parts R658 + ship R70)

The missing parts

Buy	Part	Colour	Name
46×	15379	Black	Technic Link Tread with Beveled Edge
24×	2412b	Orange	Tile Special 1 x 2 Grille with Bottom Groove
20×	3004	Light Bluish Gray	Brick 1 x 2
20×	3005	Dark Tan	Brick 1 x 1
19×	2449	Dark Bluish Gray	Slope Inverted 75° 2 x 1 x 3
18×	2682	Dark Green	Plant, Fern 2 x 3 x 2
18×	87620	Dark Bluish Gray	Wedge 2 x 2 Facet
16×	2827	Dark Bluish Gray	Vehicle Track, Train, Plastic (RC Trains) Curved (Updated Version)
16×	38340	Black	Train Wheel RC Train 16.6 x 23
16×	4304	Lime	Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Half Hollow Anti-stud] - Updated Version
15×	2357	Olive Green	Brick 2 x 2 Corner
15×	61332	Black	Technic Pin with Friction Ridges Lengthwise with No Center Slots
14×	60475b	White	Brick Special 1 x 1 with Clip Vertical [Open O Clip, Hollow Stud]
14×	89522	White	Creature Body Part, Horn (Unicorn)
14×	99563	Dark Bluish Gray	Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot]
13×	11211	Medium Azure	Brick Special 1 x 2 with 2 Studs on 1 Side
13×	48933	Dark Bluish Gray	Wedge Sloped 4 x 4 Triple, Stud Notches
12×	13548	Light Bluish Gray	Wedge Sloped 45° 2 x 2 Corner
12×	15712	Orange	Tile Special 1 x 1 with Clip with Rounded Edges
12×	2431	Orange	Tile 1 x 4 with Groove
12×	3010	Orange	Brick 1 x 4
11×	14395	Dark Bluish Gray	Brick Arch 1 x 5 x 4 [Continuous Bow, Raised Underside Cross Supports]
11×	2431pr0158	Medium Azure	Tile 1 x 4 with Black Diagonal Stripes Print
11×	99207	Light Bluish Gray	Bracket 1 x 2 - 2 x 2 Inverted
10×	15712	Black	Tile Special 1 x 1 with Clip with Rounded Edges
10×	28192	White	Slope 45° 2 x 1 with 2/3 Inverted Cutout and no stud
10×	3666	Orange	Plate 1 x 6
10×	77808	Dark Bluish Gray	Brick Special 1 x 2 Rounded with Center Bars
10×	98138	Trans-Red	Tile Round 1 x 1
9×	3002	Dark Bluish Gray	Brick 2 x 3
9×	3023	Medium Azure	Plate 1 x 2
9×	5906	White	Brick Round Corner, Curved 2 x 2 x 1 2/3 Quarter Dome with 1 Cutout
9×	60481	Light Bluish Gray	Slope 65° 2 x 1 x 2
9×	85984	Black	Slope 30° 1 x 2 x 2/3
8×	15573	Light Bluish Gray	Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)
8×	18677	Black	Plate Special 1 x 2 with Pin Hole Underneath
8×	20482	Dark Bluish Gray	Tile Round 1 x 1 with Hollow Bar
8×	3004	Black	Brick 1 x 2
8×	3460	Medium Azure	Plate 1 x 8
8×	35787	Dark Blue	Tile 45° Cut 2 x 2 (Triangle)