
(I'm from Argentina, so forgive me if my english sounds funny)
I recently bought a longsword, and I have some serious doubts about its quality and characteristics. I would like to hear your opinion, as you know a lot more than me about this.
I know that evaluating a sword without being able to handle it in real life is not that simple, but I'll try my best to describe the issues.
And don't be afraid of being too critic about it. It's the best I was able to afford (with very few options here), and I love it, it's my longsword. But I still want to know the honest truth about it, I don't want to lie to myself, or even risk injuries.
I intend to use it for solo drills, based in Fiore dei Liberi techniques (reading some books from Guy Windsor). I'm learning by myself, because the nearest hema club is about 400km from home

No sparring or companion drills for now (lacking a partner and protective gear). But maybe in a future I will, if I get the gear. (Off-topic question here: is it safe to use a real but blunt sword for sparrimg or partner drills? Or do I need something lighter?)
This is the sword (yes, Anduril-like, but I chose it because it was the closest thing to a real longsword I could get):

Overall, it seems to be good. The finish is not that "clean", but it looks sturdy, I like the style, the length is correct (1.2m), and the weight too (1.8kg, 3.9 pounds), maybe just a little heavy.
My concerns:
1) Blade material
The blade seems to be of at least proper high carbon steel, as stated by the maker. Springy and not too soft.
But I wouldn't know how to differentiate good steel from bad steel. Any tips on that?

2) Guard and pommel materials
They are made from aluminum. Is that ok? I think not, but I don't know "how bad" it is. Could it handle hits? (sparring) Has some other bad side effects?

3) Handle size
As you cam see in the picture, it seems to be a little bit short. I read somewhere that I should be able to fit 3 hands comfortably, but it fits only 2 in my sword. Is that ok? If not, what other problems can I have, besides poor leverage power?

4) Balance
I know there is no such thing as a "perfect" point of balance per se, it depends on the kind of sword and intended usage. But I suspect this one is just too high. It is 24cm (9.5 inches) from the cross. About here:

It feels heavy, even when the overall sword weight is ok for a longsword. Is it in the historical ranges?
How bad is it? What kind of problems can I have, besides being too tired?
Does it make the sword improper or not good for fiore dei liberi techniques?
5) Tang
The maker says it has a full tang. But I'm not able to tell where does it end, how deep it goes in the aluminum handle-pommel section.
If it stopped at the start of the aluminum piece, how bad would that be?

6) Pommel shape
As you can see, it has some soft but noticeable "edges" on each side, with "spike-ish" bits at their end.
I have seen irregular pommels on historical swords, but is it "too irregular"?
I think I wouldn't be able to handle the sword with my left hand in the pommel, without feeling pain when doing leverage. Combine this with the fact that I can only fit 2 hands in the handle, and it seems that my hands will be quite restricted.

Those are my concerns with the sword. Thanks in advance for your opinions and answers!