Will the EMG's 81/85 fit on my rga?

Yep. As long as it has pickup rings and it's not the direct-mounted Prestige RGA's, everything will be fine.

:)
 
The pickups will fit in perfectly but they main problem will be the Ibanez input jack because you can't just switch it out for the EMG one so you will have to work with the Ibanez one, which is luckily already a stereo jack but requires different soldering instructions if I remember correctly. So for the solderless set you will still have to solder to the input jack. Other than that, it works out just fine.