[DoubleF]

I have a bit of a complex question relating a utility room/poly B replacement project. I was wondering whether it makes sense to do the project in full (ie: guys out there anyways/cost savings/less time inconvenienced at home) or if there are aspects that can be delayed/are optional.

I was going to wait till we get more energy credits and discounts to do the work but I'm wondering if I should decide not to bother and just start shopping for quotes.

I can elect to do nothing this year without issue, but these quirks and sweltering heat is starting to get on my nerves. I just found some water damage in the basement and I can't figure out how it happened because of how random the spot is where the water came through the basement ceiling.

Project:
- Replace all the poly B in the house (I've had 3 pin hole leaks within the last 2 years)
- Install thermostatic valves or pressure valves to all showers/bathtubs in the house (flush the toilet and AAAGHGH).
- Get rid of water softener machine.

- Install AC (although I was told by two installers that my HVAC system is too old to install AC which makes no sense?)
- Replace dual 1980s furnaces (still work fine, but incompatible with AC and smart thermostats, might as well make it a bigger project)
- Replace hot water tank (Works fine, but I believe it was installed in 2006 so it is getting close to replacement age)
- Replace Humidifier (Works, but is a drum type that leaks)
- Pull a bundle of wire to thermostats so that there is a common wire to power thermostat, control AC, control humidifier etc.

Would it make sense to talk to someone like Pete the plumber and do a one stop shop for the project? Or should I break apart the piping and HVAC project?

EDIT: For AC, I was thinking two options.

Option 1: Full AC unit, which might need some rework of ducting etc. which is why I was thinking to do the furnace with the unit. Doing this might also facilitate the rest of the work in the utility room?

Assume: Poly B, valves, hot water tank, furnace humidifier and remove water softener total $20-25K. High efficiency dual furnace + AC + wiring = $20-30K.

Option 2: Don't replace furnaces. Go with mini-split AC instead to 4 bedrooms, 1 den and 1 family room.

Assume: Poly B, valves, hot water tank, furnace humidifier and remove water softener total $20-25K. No replace furnace, but mini split 3 large rooms = 3 small rooms = $10-15K. Less immediate cash flow, but probably 5 years after this project, the furnaces will still have to be replaced.