An Almost DIY Version of the Landing Gear or Side Kick no carts are needed

I took some commercially available transom wheels and built my own mounting hardware to make a killer on board kayak cart. Estimated cost would be approximately about $330.00 for the materials. (2023 pricing)

Sea Max Transom Wheels $166.00
https://www.amazon.com/dp/B07PRRWJ6Y?...
https://www.seamaxmarine.com/collecti...
Through bolts $20.00
https://www.mcmaster.com/catalog/9177...
Through bolt nuts $11.00
https://www.mcmaster.com/catalog/9183...
Aluminum:
2” tube $36.00
https://www.onlinemetals.com/en/buy/a...
1.75” Tube $30.00
https://www.onlinemetals.com/en/buy/a...
2” x ¼” Plate $12.00
https://www.onlinemetals.com/en/buy/a...
½” Aluminum Bar stock for making Gear track sliders $8.00
https://www.onlinemetals.com/en/buy/a...
1/4 Aluminum plate end reinforcement $20.00
https://www.onlinemetals.com/en/buy/a...