There is really nothing to dislike about the SMLEs; they are rugged, reliable and accurate. They are the fastest military bolt action ever made. The 303 British cartrdige has taken most everything on the North American continent.
I do not doubt that you received little interest at the gun show. There are lots of these rifles around and some are so inexpensive it isn't worth much to a dealer's time to deal with them.
As for the stocks - yep, you can go with a synthetic - makes them look good, but you may have to glassbed the action for best accuracy. Any good scope will do for the #4s - you can purchase the aftermarket 'no-gunsmithing' mounts that work very well and don't give you any problems. Forget the bipod - it will just add weight and if it attaches to the barrel it will have an impact on your accuracy. If you have free-floated the barrel and attached a bipod to the forestock and it bears on the barrel it will affect your accuracy.
I would stock it and scope it and shoot it and have fun. For more fun see if you can find a 7.62x23mm/303 adapter from MCA Sports in Anchorage and shoot inexpensive surplus as well. HTH. Mikey.