I decided to try something different and build a belt drive board. The total cost varies a bit depending on where you buy everything but it should be around $300 or less. The weight of the board with batteries is a little over 11 lbs.
Here are the parts:
ESC with remote (10S voltage, belt motor/brushless motor):
https://www.ebay.com/itm/single-motor-electric-longboard-skateboard-controller-ESC-Substitute/302546263597
6374 Motor:
https://www.ebay.com/itm/C6374-high-efficience-sensored-brushless-motor-170KV-for-electric-skateboard/323129353173
Motor mount for Caliber II trucks:
https://www.amazon.com/Premium-Electric-Skateboard-Caliber-Compatible/dp/B01N6AGCEL
Other motor mount option (I use this on my newest belt-drive board - may require grinding the trucks):
https://www.ebay.com/itm/DIY-electric-skateboard-parts-pulleys-and-motor-mount-kit-for-83-90-97MM-wheels/323277743059
This is just the mount:
https://www.ebay.com/itm/CNC-motor-long-mount-for-50-63-motors-for-DIY-eskate-electric-skateboard/323427418037
Trucks (9” requires grinding):
https://www.amazon.com/Caliber-Trucks-Blackout-Skateboard-Degrees/dp/B00QNOZWBY
Trucks (10” shouldn’t require grinding):
https://www.amazon.com/Caliber-Trucks-Cal-Longboard-Black/dp/B00NY3Q5Q8
I used these FS 150mm trucks with the ebay motor mount on my newer build. I needed to grind them similarly to trucks in this video:
https://www.skateshred.com/trucks-wholesale/fs-150mm-longboard-trucks.html
Deck:
https://www.skateshred.com/wholesale-blank-longboard-decks/31-5-x-8-mini-kicktail-blank-decks.html
skateshred.com also has other skateboard stuff like hardware, risers, and a skate tool.
These bearings are decent:
https://www.skateshred.com/longboard-parts/bearings/swiss-whites-bearings.html
Two 5S / 3Ah batteries
https://hobbyking.com/en_us/zippy-flightmax-3000mah-5s1p-20c.html
https://hobbyking.com/en_us/xt60-series-adaptor-2pcs-per-bag.html
5Ah battery option
https://hobbyking.com/en_us/turnigy-battery-5000mah-5s-20c-lipo-pack-xt-90.html
The price and availability of LiPo batteries seems to fluctuate. Check around the internet from time to time to see what’s on sale. I would recommend 5S voltage with 3Ah or more capacity.
Other battery options (may not fit in the container above)
https://hobbyking.com/en_us/turnigy-3000mah-5s-20c-lipo-pack-1.html?mode=list
https://hobbyking.com/en_us/turnigy-4000mah-5s-30c-lipo-pack-xt-60.html
Container for batteries (for 3Ah batteries used in this build):
https://www.target.com/p/sistema-klip-it-12-8oz-rectangular-container/-/A-50496301
Container for batteries (for 5Ah batteries used in updated hub motor build):
https://www.amazon.com/gp/product/B0013G77PG/ref=oh_aui_detailpage_o08_s00
Amazon may not carry them anymore
https://www.houzz.com/product/91909574-lockandlock-rectangular-tall-food-container-550ml-contemporary-food-storage-containers
Containers for ESC:
https://www.amazon.com/Sistema-Collection-Sandwich-Storage-Container/dp/B0040QD9MG/ref=sr_1_12
Griptape (rubber):
https://www.homedepot.com/p/TrafficMASTER-Smooth-Black-2-ft-2-in-x-Your-Choice-Length-Roll-Runner-MT4000129/304613565
Griptape (carpet):
https://www.homedepot.com/p/TrafficMASTER-Dayside-Color-Ebony-Texture-6-ft-x-Your-Choice-Length-Carpet-MK22W180072S/302721625
Spray adhesive:
https://www.homedepot.com/p/Loctite-13-5-fl-oz-Professional-Performance-Spray-Adhesive-1629134/205506865
Screws and washers can be found at most hardware stores like Home Depot:
sheet metal screws: #6 x 1/2”
flat washers: #8
B6AC v2 LiPo Balance Charger:
https://www.ebay.com/sch/b6ac+v2
Parallel Balanced Charging Board:
https://www.amazon.com/Weyland-Parallel-Balanced-Rechargeable-Expansion/dp/B06XW6XCZ3/ref=sr_1_4
Rotary tool:
https://www.harborfreight.com/rotary-tool-kit-80-pc-63235.html