Hello and welcome!
There are a number of experienced members here who are very knowledgeable when it comes to EVs, but in order to get a better response you should comment on what exactly you need. What kind of power, what kind of range, budget etc...
One topic that you can research on this web page is the topic of AC vs. DC...as you may know most (if not all) major car manufacturers use an AC drive system, but due to availability issues, most diyers use a DC system. Given that you would like to be selling vehicles, you need to compete with other EVs that are on the market and in my opinion need to consider an AC system as well.
Good luck!
There are a number of experienced members here who are very knowledgeable when it comes to EVs, but in order to get a better response you should comment on what exactly you need. What kind of power, what kind of range, budget etc...
One topic that you can research on this web page is the topic of AC vs. DC...as you may know most (if not all) major car manufacturers use an AC drive system, but due to availability issues, most diyers use a DC system. Given that you would like to be selling vehicles, you need to compete with other EVs that are on the market and in my opinion need to consider an AC system as well.
Good luck!