As you know I do a lot of anchoring in wild places and use a small dinghy to get ashore. Mine's an XM180. I presume that's 1.80m. It's a well made, 'proper' inflatable, maximum two people (but you have to be careful how you get in, otherwise it's an early bath). There's no outboard bracket or capability though. It rows quite well with its attached oars.
On passage I keep it deflated between the console and raised bow locker. It comes with a foot pump, five minutes to deploy from start to launch. On shorter hops I lash it upside down, athwartships, abaft the console.
I looked recently for it on web sites and it seems it's no longer made - well, I couldn't find one - they all seem to be bigger now. While very small, it's made of heavy material (not hypalon, can't remember if it's PU or er... the other stuff) and doesn't seem to weigh much less than my Avon Redstart.
If you want something big enough to put a motor on - and much more stable - I would look for a good used Avon Redstart. The Avon's, especially the older ones, are the Rolls Royces of inflatable tenders. In the opinion of many, nothing comes close to their all round capabilities afloat and handiness when deflated. Personally, I wouldn't bother with an electric pump, the foot pumps provided are ok as is my RIB's 'stirrup' type pump.
I would not go for the 'cheaper' ones, they won't survive the mussels, barnacles, knife edged rocks you'll be landing on. Oars and fittings are usually crap too. Do get a 'proper' one and be safe.