shop around for cheaper ironworks guys and get a quote. i would image they quote around $800 - $1000 for gating the 1 area between the walls. that should be in your budget and is better than framing in a cheapo lattice DIY gate.if i really wanted to splurge, i'd go with aluminum gate; around here socal many folks including me of amerasian diaspora seem to love the rich modern light silvery look and it imparts heaps of feng shui apparently; doesnt have the black metal bars jail look at all!

So this is not just drilling some new 2" Tapcon screws into the concrete blocks, last one I had done they had to remove everything to the concrete blocks themselves, then epoxy in metal fins etc...all I am saying it's involved. 

TJ's anecdote time.I spent several years in northern NV which is heavily dependent on metals mining.

Home needs painted but seems solid (metal) and has a good roof.  

One of my initial questions on my CL ad is 'how many animals?'

Slightly off topic but if you replace the supply lines of your toilets do not forget to use the braided metal lines on the Clothes Washers.  

Scrap metal sales also can go back to guy who carries it to the junk yard.

I don't post my phone number in my CL ads.  

In regards to renters, they actually had metal leg bar stools in one area.

They would be more willing to allow someone tenant or landlord bring up to code and help by setting an iron clad occupant load.