All my pattern planes have had down and right thrust built in, and so have all the top dollar planes I've seen.
Even my old Hyde Out had one deg' of each and that was from a guy like Chip Hyde that didn't believe in right thrust! That plane needed the typical Hyde rudder to throttle mixing in place of engine thrust. After a couple of years I just dropped the mixes and added 3 deg engine offset instead and a swear to god it few considerably better!
I wouldn't hesitate to build in 1deg down and 3deg right thrust into your model and trim from there.