It sounds like you have the tractor part pretty well figured out. For the grapple, I highly recommend Everything Attachments wicked line of grapples. Very high quality, stronger, and lighter weight than what your dealer will sell you. Price will probably be a little more though. On a small tractor, you won’t have a whole lot of FEL lift, so every pound you can save in the weight of the grapple itself is one more pound of log you can pick up. The EA grapples are usually a couple hundred pounds lighter than competitors.
I have no connection to EA, just a happy customer. I just want you to know what is available before the dealer sells you something you aren’t going to be happy with a year down the road.