Presume and assume... the oldest question ever

Hello there,

Could I ask you to have a look at the email I sent to a person who is selling a guitar I'm interested in buying? I'd ve grateful if you could point out any mistakes. I'm particularly uncertain about the way I used the verb presume as I find it very hard to clearly see the difference between presume and assume.

Hi Tom,

Thanks for the message. Indeed, the shipping costs are quite high. Much higher than I expected. I have to think about it. In fact, I'm quite the same when it comes to Eric Clapton. His music has accompanied me for years and I have a tremendous respect for his musicianship.

The odd thing is that if I bought this guitar from you, I'm not sure if I'd actually dare play it.

I presume it will get sold quickly, though.

Best,

Kat