.....Funny thing is, now that it’s finished and I’m more than happy with it(also that it nearly broke me), I can’t bear to even put a cuppa on it let alone risk doing any projects in case I dent or scratch it......
You'll get over that before long! If there's one thing that's certain, it will only stay pristine if you don't use it, which rather defeats the purpose of all that hard work....
My own bench was largely hand-built too. I did mill the major timbers using 'lecktrickery, but all the joinery & final planing & flattening was done with hand tools. The front vise is home-made using a metal bench screw and water-pipe for guides. I was a bit younger & fitter 35+ years ago, but it was still a fair job, & like you, I was almost afraid to use it when it was done.
However, use it I did, and despite being careful (most of the time), by it's 25th birthday, it carried a few scars. The first ding is the worst, after that you notice less & less. I use the tail vise 90% of the time & this is what that end looked like at about 25 years, before I re-surfaced it:
Another dozen years have passed and it is showing the evidence of much use again (I spend most days at it now I'm retired from the day job), but I'm not sure I can be bothered prettying it up again. The top is hard maple and a bit more challenging to plane than pine, so I think I'll leave it to the next owner to decide what they want it to look like. I have sacrificial inserts in both vise jaws, which bear the brunt of the mishaps & they are easily replaced on a regular basis, so I maintain maximum functionality.
It is by far the best woodworking tool I ever made. If you are a hand-tool user, once you have worked with good holding systems on a solid bench (& a dog system is hard to beat), you will wonder how you ever managed to make
anything without it!
Cheers,
Ian