The Tascam DR-05 is widely available for $90-$100 online--including at SoundPros. It depends on whether you want the in-ear mics. I don't know anything about those mics, sorry.
Actually I'm more curious about SoundPro Ghost Hunter 3, which claims to still have the Roland R-05 as part of the package. It's about the only place I've seen online still offering the R-05.
https://www.soundprofessionals.com/cgi-bin/gold/item/SP-GHOST-HUNTER-3From early reports here it looks like the Roland R-07, which replaced the R-05, has idiotically removed Line-In for an Aux function that goes through the internal mic preamp and can't handle a hot input. The R-05 was about $200; at $299 you're paying $100 for the in-ear mics.
So if you had a use for the mics, or wanted to sell them off afterward, you could still grab the R-05, which was widely praised.