@duramax747 It sounds like you are set up and ready to go and with personal care and attention are likely to get a better build quality than most factory speakers. As for the crossover and speaker design, you are trusting the guys on the DIY board, who are likely pretty knowledgeable. They have invested a lot more time than the average guy who walks in a plops down hi Amex and buys a pair of expensive speakers. OTOH, they are subject to the same confirmation bias as everyone else.
But don't expect guys who have bought $20k speakers on this forum to agree that your speakers stand a snowball's chance in hell of sounding as good as theirs. they won't do it.
Jerry