Hi! I suppose it's a map based on the two pictures you've provided? I do ink + watercolour or kuretake gansai tambi paint works, so I can also sent the original via mail. I've done maps before, but currently I'm still bound by non-disclosure agreement, so can't show these for about a year yet. Some of my other works, mostly commissions:
As for the price, depends how much detail you'd like in it - I'd recommend either A4 (120-180USD) or A3 size - 300-400USD (A3 is twice bigger than A4 so more detail). If it's something more sketch-level, the price will be obviously lower, I can adjust that individually. Sending the original via post is +30% of the original price, postage costs included in that. Payment via PayPal only, and my contact is syl.telari (at) gmail (dot) com.
(PS. Yay for your Aku No Hana avatar)