Not sure what kind of fishing you plan to do, but here are some modifications I made to both my 2007 H180 (sunsport seating) and my current 2007 H210 (standard seating). I like to fish Lake Michigan and troll with lead core, dipsey divers and in-line planner boards. All my conversions can be removed and the boat looks 100% stock. It's a bit of a challenge to get a good set up and avoid drilling holes.... I have a lot of pictures of the 180, but my 210 is still a work in progress and only have a few to show for now. However, I did get it out last weekend for a shake down cruise and threw a couple of lines out. The 210 standard seating worked out great and allows for a ton of room. I replaced the front/back seat with another bolster, which really opened up the cockpit.
I do have to use two heavy duty 30" drift socks to get my speed down to 2.5 mph. Surprisingly, the two bags have the exact result with both boats. Without them, my slowest speed was closer to 4 mph on the GPS.
180 looking from the bow to the stern:

180 bow:

210 in storage this winter:

210 last weekend on lake michigan:

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http://youtu.be/-4ckF7u1iNk2003 PowerQuest 260 Legend SX
2014 Lund WC 14
2007 H210 Volvo 5.7 Gi/SX (sold in 2012)
2007 H180 Volvo 3.0 (sold in 2009)