Steel work is almost done,
I think you've only just began what can be done to that ol' girl to really make her pop as a custom rifle...you are going the full custom built stock for her so might as well "finish the job".
first of all, that big ol dog leg bolt handle knob can be re-modeled into the perfect dangerous game buttter-knife bolt that will fit your thumb and hand perfectly....saw cut part way through the root of the knob ( saw so the cut intersects with the factory hole in the knob), now saw cut through the top of the bolt lengthwise with the factory hole to join the two cuts up. Now torch heat the two saw cut petals up and fold/bend them open so you are left with a "dish" for your thumb to grip into. Now use a Dremmel or other small grinder to smooth out all the rough/sharp edges of the petals & bolt root to whatever contour turns your crank. Leave the dog leg "as is" or, if you have access to a milling machine you could skeletonize the heavy parts with a small mill cutter to lighten it up a bit, your choice on this one.
Next job...that big ol obnoxious safety handle needs to be lightened up & downsized. I used to grind one of the lumps off and then grind the square edges completely off the rest of it from top to bottom and finish-grinding & contouring with a Dremmel and emery cloth. You can easily take 1/2 the weight off that safety and it will still be lots strong enough to do its job.
Next job is to round all the edges and lighten that catch retaining mechanism (especially that round knob that anchors the spring) on the other side of the action. this is just a grind-Dremmel finish & Emery cloth polish until you get to your preference of completeness.
There is one more change you can make to lighten up your rifle a bit as well. you have already ground or milled the "ears" off and there is a big chunk of un-needed iron at the back of the action around that bolt retaining mechanism that can be ground off without marginalizing the action strength at all. Pm me your phone # and I can send you a photo of an action that this is already done on if you like.
It might take all this winters evenings to do with small tooling but you will have a rifle that you will be proud of for the rest of your life.
Ohh ya, almost forgot the blueing of these old Enfields...you can "cold blue" an action to be very appealing but it may take a lot of experimental spotting with different commercial formula's ( their not all the same) before you get to a finish you like...or you can get it commercially hot blued but be aware the some of these hard actions dont blue, they come out of the tanks a dull to a very brilliant purple. Personally i find the purples very appealing in a finish but too each his own on this...you get what comes out of the tank with no choice on your part.