Cartridge recommendation for a Rega Planar 3 with a RB330 tonearm with Rega dust cover?

Budget is $200 to $500.  Preamp phono inputs available in likely use descending order are a Conrad Johnson PV-5, an original Musical Surroundings Phonomena and an Audio Research SP16.  Speakers are either Thiel CS 3.5 or KEF LS50 Meta.  The room measures 12' W X 22' L X 8' H.  The speakers will be on the short wall.  Also, are there any negatives to adding shims to the RB330 to get the correct VTA?  Thank you for your suggestions.