They look good, but my primary concern with a unit that size is that there is no way in hell you're getting it hot unless you're running pure wood (the offset models at least) And you will need a LOT to run one of those things. I'd be looking at a few smaller, but more easily manageable pits
I know Nerijus well and the smokers are really well made. there are a few of his trains out there and some nice offsets but they do all shapes and sizes. Worth going to see him, last time I spoke to him he was setting up a show room