Alterations Question

[insaneusmindyus.livejournal.com]

I apologize for this being text-only but I have a question regarding corsets and boning.  I am hoping someone here can help me out.  I own an underbust corset that I purchased at an anime convention.  I thought it had plastic boning, but found out after I got home this evening that it actually has a light metal boning and is from Thailand.  Before I got home, I purchased another corset, this time off of eBay.  It is from Hong Kong and the auction listing states that it has plastic boning.  Has anyone ever replaced boning in a manufactured corset before?  Is it worth it to even attempt?  Any input would be wonderful, and I thank you all in advance!