Italeri (Accurate Miniatures) A-36
I really like the AM line of early P-51s and A-36s. Here's the most recent one I've built, released by Italeri. Straight OOB, even the decals, except for the yellow wing stripes, which I painted instead of using the decals.
I used Model Master Acryl paint and washes, along with some Tamiya weathering kits.