My question wasn't about whether to DIY, it was about if anyone knew about the conversion kits.

Second floor loft drywall complete, ceiling primed.Down stairs bath Plumbing finally finished (almost a week setback) new tub combo installed and walls mudded. 

The good meters will run you $380-ish.Have plumbing repairs in past included installing "Studor" vents or air-admittance valves in the venting ?

My consideration for this is to do this as a subject to with installing a tenant buyer in there.

Since the sink is integral to a salon and this overflow not something normally needed, I would say you as tenant would be responsible to install (and pay for).  

I have alot of experience in doing "retro fit" installs in houses being rehabbed and or flipped.

I suspect you will also have to get hard-wired and interconnected smoke detectors installed since you are in the process of re-wiring.

You could buy notes as well, but this requires access to substantial cash.The reason I say “control” is because it is possible to build CF without actually taking title to property; sandwich techniques such as option/lease option/installment purchase and then turn around and do the same or simply rent.

Lowes is a bit more expensive but the $75 whole house install is just tough to beat.Not to mention the fact that when I first started and tried to get installers lined up, they were never very reliable for me.

I have a carpet man store that offers commercial grade carpet and pad for $1.25 per square.....installed.