Glad you have chosen to go with VEMS. It is honestly miles ahead of anything that 034 has. I can't stand 034EFI as a tuning platform. The software is just terrible. Don't think you are getting less with a VEMS because you aren't at all.
As for the turbo, sounds like you want a modern day RS2. For that, I'd suggest something around a gt2871 or a gt3071. If you want the power of a 3071 with the spool of a 28, take a look at HTA turbos. They are the best turbos out there right now in my opinion. They pretty much all take the power of the next higher garrett with the spool of the smaller garrett. For example, the HTA 30r makes the power of a 35r, but spools like a 30r.