The Additional parts might add up. You may want to find an accord in the junkyard. Having an LX makes this difficult, you need to get the upper display, the senors aren't so critical as of yet. You just will not be able to fully use the auto climate system becasue of the sensors. I believe the sub diplay read out by itself is close to $200, so you should really price everything before moving forward because it might not be worth it in the end.
Im telling you this because I went through with my EX coupe. Luckily I got mine from a junkyark and I was able to pull it out. When I priced it, it came out to be pretty expensive if I would have brought any navi digital part from the dealer.