Since the US ones are disposable anyway, here are come comparables for well under $3K (often under $1K) https://www.aliexpress.us/w/wholesale-Electric-wheelcha

Since the US ones are disposable anyway, here are come comparables for well under $3K (often under $1K) https://www.aliexpress.us/w/wholesale-Electric-wheelchair.html https://www.aliexpress.us/w/wholesale-Electric-wheelchair.ht... No idea if it makes more sense to buy those, design from scratch, use those for inspiration, or buy one, tear it down, and rip off the bill of materials.