Quite far. Not only do you need to synthesize the proper genomic sequence (barely possible), but it needs to be packed into a valid chromosome structure with a

Quite far. Not only do you need to synthesize the proper genomic sequence (barely possible), but it needs to be packed into a valid chromosome structure with a valid epigenome. Then that needs to be placed into a cell with valid RNAs, compatible chloroplasts and mitochondria, compatible proteins in a compatible configuration, etc. Creating all of that de novo for a plant is well beyond current capabilities. This is why when we clone e.g. a sheep, we transfer a nucleus from the cell of one individual into the cell of a different individual. It is much easier to mix and match pieces of different cells from the same species, than to create those pieces from raw materials.