Welcome back to the hobby! Yes, the Monogram bubbletop Mustang is a very nice kit. I look forward to seeing your build.
If you look, you can also find Revell's old P-51D bubbletop, that was in their catalog in the Seventies, before the merger. Both Monogram and Revell had their own kits of this subject; the Monogram kit is the one that was carried forward in the catalog, after the merger.