How much space do you need and how fast do you really need to go. A Bearhawk will be as fast as a 182. It would be a good all around airplane, but I hate to say it but an RV is popular because it’s that good. No other reason. Remember that most of the super short takeoffs and landings you see on YouTube are with all the junk in the trunk thrown out.
From scratch how fast do you think you can build? They tend to take a long time. If you have an abundance of free time, you could probably knock a RV fast build out in a year if you did nothing else. I know someone who did it in 8 months. Most take five years. Nothing prettier than a Falco but it’s a long haul project even when kits were available. This is a good resource to see how it is to scratch a Bearhawk Eric Newton's Bearhawk Site