Do you have practical experience with old houses? I have a 100 year old house. I know the challenges that you can get into just trying to do simple things, and I haven't really tried to major work. Houses simply were not built the same way they are today, with different materials, different techniques, and you can't work with them the same as a new house. Add the element of time and it gets even harder.
Unless you have extensive experience with old houses, you are in over your head and you're in the phase where you think you're good but that's because you're just ignorant. Slow WAY down.
Tax credits come and go. Rebates come and go. Technology changes. Code changes. The fact remains that you do not have the cash to do all this work.
Here's the order of things that you do:
1. Fix the things that are falling down now.
2. Fix the things that will make things fall down in future.
3. Everything else.
You seem to be mixing a whole lot of everything else into your wish list, and you can't afford it. So stop, categorize everything into those buckets.
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More generally - you are aware that you likely can't just put insulation in the walls, right? Not without problems at least. Old houses need to breath. They don't have vapor barriers, they rely on air flow to handle any moisture that gets past the exterior. Insulation can be added pretty easily to the attic, just watch that you don't cut off air flow. Air sealing around doors, windows, and the rim joists (attic and basement) are very DIY friendly and also pretty much the only things you can do without messing things up, at least unless you want to spend lots of money adding the vapor barrier in some way.
Are you on K&T, old Romex, or what? What condition is the wiring in? How old is your electric box? Is it a circuit box or fuses? Have you mapped the circuits? How concentrated is the living areas on individual circuits? Unless the electric has been updated, you may have $20k in costs right there if its bad enough to need replacement. Plus the related work to fix the damage from fixing the electric. And if you have K&T, you can't insulate the walls, its a fire hazard. You would have to run new wires and remove or disconnect the old.
What's the plumbing made of? How old is it? Are there old sealed leaks? Indications of pipes rusting from the inside? Are any galvanized pipes clear, or do they have build up? Are the original cast iron drains and vent stacks still in place? How much have they rusted?
Do you have city sewer or septic? If sewer - what's the condition of the main line out? If septic, what's it's condition?
What's the status of lead or absestos in the house? No, they're nothing to panic about, but if you have them (you do, somewhere) then abatement can ballon your costs very quickly.
Do you have plaster and lath? What's its condition? Are there indications of keys breaking off? If so, how extensive, and what's your plan to deal with it?
With old houses, you need to worry about a lot more than the fun energy efficient stuff. The house is 100 years old. That means that the plumbing, electric, and everything else is potentially 100 years old. This stuff does not actually last forever, and it will need attention and money, potentially lots of it. Make sure you know these things before you sink money into optional projects.