Additional heddles for old Harrisville 4H/4T loom????

I have a well-used, newish to me Harrisville 4H/4T. I need to add 200 heddles for some towels I'd like to do. Measuring from top of top heddle bar to bottom of lower heddle bar is 10 1/2 inch.  Harrisville replied to an email saying the 10 1/2 inch large eye wire heddles they currently sell will work, mixed, with my older steel heddles.  I plan to eventually use fuzzy/textured yarns altho so far have been using cotton.  Does anyone have experience/know if I can use 10 1/2 inserted eye heddles from LeClerc or others, or if Harrisville's justify the additional cost?  

Thanks,

Nancy