Why not just kill two - or several - birds with one stone. Make yourself a good No4T replica. It's not too difficult if you follow the guidance on the forum. THEN, if you need to use a telescope, you've got one.
If you want to put a super dooper commercial telescope onto it then that's possible too if you mount it a) into your original bracket or b) mount it onto a IIW mount as shown here recently.
Want to use iron sights........ Guess what........, they're already fitted and zeroed in for you.
Want to use a P-H 5 type side mounted 1/4MoA sight. Again, simplicity itself. P-H made some slightly modified to clear the rear body pad. These were also shown on the forum recently too.
Want a one-size-fits-all rifle?> You're already looking at one. All you need to do is get cracking. And afterwards you're left with a No4T rifle that's worth a whole lot more that the one you started with, albeit a replica. At least it'll be a GOOD one and competitive too..... Well......, what's keeping you..........?