I Know you can have that printed by a shop with a
DTG printer that has white ink.
The art can also be screen printed by a printer that knows index and or simulated process.
When a print shop tells you it cant be screen printed it usually means they cant do the job. I cant do the job as well simply because I dont know enough about the two process mentioned to take on the work.
Inkjet transfer would need to be on opaque paper and contour cut but it isnt going to be anything like an actual on the fabric print.
You can post an ad in the classifieds on this forum for someone to get your printing done.
Read the thread about posting an ad.