Cervids- Nice user name

. Welcome to the forum.
You are correct in that Remington is the only major comapny to offer the 35 Whelen in "factory" guns. I have seen Rugers chambered in 35 Whelen, but they were custom ordered.
As far as accuracy, you are also correct, in the normal range of the 35 Whelen either action will be plenty accurate for hunting. The bolt will be "inherently" more accurate, just because of the way the actions work. I am no smith, but have had it explained to me many times, and have found it to be true, when you really test it on the range (the difference really isn't that noticeable in guns made these days).
As far as holding value, the bolt will be worth more in the long run (if taken care of, of course), both because of initial cost, and bolt actions just hold their value better than semis or pumps.
Ammo recommendations is more bad news, there are very few factory loads for the 35 Whelen, you are much better off handloading or searching the web for custom loaders for that caliber. Choose your load dependent on the critters your hunting, but the Partition is a good one in the 35 Whelen.
Make sure your supplier can get the Remington 700 CDL in 35 Whelen, as it is a limited run, and several of the places I checked counldn't get it. There are plenty of suppliers on the web and in Gunlist that offer it though.
Good Luck
Erik
Rusty Axe Camp