Foxtrot:

Almost any twist, rigging error, or warp can be trimmed for. And many are never noticed in flight or trimming.

As for example, your difference in tail to wingtip measurement. Had you not measured it, you might never have known about it.

My C-3/10 twin has 1/4" difference in this same measurement, it makes no difference in flight.

In other words, get them as straight as you can, but unless you are trying for the ultimate airplane don't be overly concerned about minor discrepancies.

Bill.