First, you can't go wrong with a Comanche (with a good pre-buy from someone familiar with Comanches).....
IFR can be complicated enough without having to use a shotgun layout. I immediately changed my panel after I bought my Comanche 260B. I removed the ADF, and added a few things along the way. I think it is difficult to find a plane with the panel that you want already in it. I fly enough that I know what I want, and I want it my way. So, I put in what I wanted. I have no unrealistic expectations that I will get my money back when I sell, and since I fly a lot, safety and convenience is most important to me.
I would suggest an engine monitor. I fly LOP.
Obviously, you will need to address ADSB. I have not fully addressed it yet, although I do have a 330 that can be modified.
For IFR, I would suggest a HSI. I have an Aspen which I love. It is feature rich.
I have a 530 and had it upgraded to WAAS.
My 696 is older than the latest and greatest portables, but it provides a wealth of info which is invaluable for x-country. I have the XM subscription for wx and for entertainment on trips. I usually listen to comedy on the longer trips...
My panel may be over-kill with it's triple redundancy, but if I ever get lost or lose SA, then I should stop flying...
Good luck in your search. Comanches offer one of the best bang-for-the-buck out there.
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