If nothing else, mixing your concrete yourself on a platform and then letting it gravity feed into and through your holes with a self made mason's pouch (much larger, perhaps made out of canvas or heavy mil contractor's bags)One way or another though after filling your block, or possibly re-laying as Matthew alluded to, you'll want to properly attach the structure and walls to your new solid block wall. 

Was the movement consistent during those 10 years, or was it all front loaded (early) or back loaded (late), which means either the start or end of a trend.  

By the time it was cut on for the drop in cook top, it only took a young man and myself to pick it up and install it.My cutting table made of steel tubing and plywood surface.The circular saw with water feed at the blade, truing up an edgeFinished countertops and splashes in place.The post was getting too long so I cut it short.

The project is already 50% finished, and consist of 2 building in parallel with a swimming pool in the middle.

Plano, TX  and South FL have been consistent appreciation and never been a problem with renting them out.

Replace most lightning, 1st Floor- Walls/ceilings (repair and paint, popcorn ceiling removal), hardwood floors (repair some areas /refinish), tile floors (reglaze &/or replace to be more modern/consistent, Kitchen (glaze tile/back-splash, paint cabinets, recover counter top, replace sink, repair wood below sink, replace appliances, replace stove hood-vent)...

The rehab consisted of interior paint, carpet in bedrooms, new dishwasher and microwave, and a one vanity.

Receiving a consistent flow of cash can provide investors stability during an economic downturn.

I've been doing my estimates in a spreadsheet, but it takes a long time and more to the point I'm still not very consistent or accurate on how many man hours different things take.

In Minnesota and Connecticut, those moratoriums have stayed in effect, keeping eviction filings in Connecticut low, although Minnesota's have consistently risen.