@flyingron Is there enough difference between the "standard" arrow and the II to justify the price? Seems like the price is all over for those.
Yes it is a justifiable difference, but only if you need it. You don't need that difference, so don't pay for it. It's a "back seat needs or not". Same mission "gap" between the M20E and M20F. Same engine variant (angled 360) on that series as well.
For a trainer mission, the pre-1972 200hp Arrow would do fine, as you won't use the back seat. I won't go into the spar AD second tier effects of ownership anymore, caveat emptor for brevity.
Yes, the 180hp variant is a dog even with only 2 up. No different than the 172rg or anything else in the 180hp trainer lineup. My hottake: I'd still go with the 180 for your mission, do yourself a favor and skip angled valve lycoming 4 bangers.
The 180 will be a parallel valve, which will be a little cheaper to overhaul and potentially a bit more reliable (not the the 200 is a bad engine). Slightly lower octane requirement, so it could even run on 94UL if it comes to that.
A lot cheaper imo, as a % basis, especially post-covid cost basis. I was floored at how much they wanted for things like jugs and crank for an angled 4 compared to the parallel variants. A parallel valve 540 was quoted as cheaper to repair/overhaul, which was insult to injury. When they told me the 540 crank was cheaper that's actually when I threw my arms up and quit.
For the 20hp bump, the costs didn't make sense to me on the IO360. If I had to do 2013 all over again, I would have just found a beat up cherokee 260 for a couple AMUs more and just "flogged" it at 13 gph to go about the same speed as archer+, with better climb (given our low payload, a +4gph delta is only a 96lbs penalty over a 4 hour planning segment) to cool altitudes and R-word excess cabin comfort. Live and learn.
Yes, I know that profile basically screamed Dakota. I just couldn't afford Dakota asking at the time, and Pathfinders (the hershey winged predecessor with the adult backseat), given all other -235s are otherwise midget backseat for most of their production run, were outright non-existent (still are).
Lastly, as you highlighted already, moving towards retirement airplane pipedreams, with a medical expectation of PIC circa 2051 in sha'a Allah? yeah... 100LL reliance is a poor bet. Personally I don't think it's gonna get replaced 1:1. I think people whose TCDS status quo relies on a poweplant incapable of making cert number on 94UL are on borrowed time. That means parallel valve for me going forward, experimental or not.