I'll go in with $600 plus escrow fee and shipping

I have 3 D3 miners on the way, I would sell up to 2.

Sold

jjrundy pretty much nailed it looking to invest  25K in minnin but recently getting in touch on how to sign a message ?
Anyway if you still hold real collateral for this loan proffesional lenders like, condoras , darkstar or zazarb will fullfil it right away.

you will use this for means of signing a message with an address you own
wallet that you control

-----BEGIN BITCOIN SIGNED MESSAGE-----
This is a29645 from bitcointalk.org today is (today's date), this is for proof of ownership of the address
-----BEGIN BITCOIN SIGNATURE-----
(your address)
(signature)
-----END BITCOIN SIGNATURE-----

 here is mine

-----BEGIN BITCOIN SIGNED MESSAGE-----
i am jjrundy from bitcointalk and this is my address, today is 8/9/2017
-----BEGIN BITCOIN SIGNATURE-----
1MuW8PRqs39b7Uye8SZUpv55QFZe8h6Y2U
ILekmoSiZ0Iv2Wwm8ec34Q+UpyeBiuYnvQR6wTNs5vXiSXxK78p3AqI5dC2431ki3rc26wxgARIEnrb3BbAV+CU=
-----END BITCOIN SIGNATURE-----
verify the message here https://tools.bitcoin.com/verify-message/, and also it needs to be an address previously published in an old thread here.

p.s. i find it absurd that you will put 25k in a mining operation but don't know how to sign a message.