I have a few CBs with F/H-series engines and a CG2 with a J30A1. So my only reference to the engine bay of a 6th generation Accord is how well the V6 sits inside of it. Seeing yours it looks like the cowl halfway covers the intake manifold. This isn't the case on the older Accord like mine.
And speaking of intake manifolds, yours is indicative of you having the 2000-2001 H23A VTEC and not the 1998 like you suggested. The 2000-2001 H23A VTEC uses the PDE cylinder head. That's the same cylinder head found in the Accord Euro R, the Accord Type R and the Prelude Type S and S-Spec. It has revised valve angles and nicer port work. It's truly the best H22A head that you can get. This engine would do nicely with a pair of camshafts from any of the above-mentioned engines as well.