My plan is to build an all-electric rig, something close to Kal's. I have two kegs and would like a third, but I'm cheap and in a corner of the world where kegs don't come by too often. I could get a 10 gal cooler easy enough. I also have a ~6.5 gal stainless pot from my turkey fryer set.
I've only done 5 gal batches so far, probably not going to go beyond that.
What would you recommend for a set-up? Use the fryer pot as the HLT and a keg for mashing? Get the 10 gal for a mash tun and use kegs for HLT and keggle?