Certainly would provide some peace of mind if the money isn't a problem. The only real downside is still needing a bellhousing, whih seems to be around 2-300 on eBay for used and about 350-400 brand new at Novak or AA based on the last time I checked.Even if I can talk him down, it seems it will still be less of a hassle to just go ahead and buy a new one.
Here is a decent bellhousing for $200 with free shipping. Not bad, I think that's honestly the best bellhousing deal I've ever seen for an AX15. They're usually around $300 and maybe more with shipping. You might want to jump on that one.