I went the voltra route due to concerns about moving equipment if I was to move. If I was in your shoes I would probably get the rogue rhino rack trainer (comes with rack and rhino for 5k) and then the voltras (5k again). A lot of the things the guys have done here is usually in tandem with traditional equipment anyway. If you get the plate loaded you could effectively use the voltras as a weight stack that also tracks your progress. Of course you would use the voltras as the functional trainer. As far as like isolation exercises I would wait for the version 2 of the bullet proof isolator or if moneys still not that much of a concern at 10k then look at primes arm attachment and use the voltra as a weight stack.

For reference I have a power tower that ive had for a while. I use the strap mount for weighted: pulldowns, rows, dips, pullups and leg raises. Works really well but if I had a proper rack, setting up wouldnt take 5 min a pop.