A <5 Mtr rib is not a small size to handle, for real boating fun will need at least 40 to 50 HP engine. I much preffer 420 to 470 open ribs too, the available deck space is awesome. Check Quicksilver, Mercury, 3D Tender, Highfield brands, just to mention some nice ones if available in Canada.
Some of them are quite wide (1) to tiller drive, unless you sit next to tiller next to port tube, but that's an issue for me being a left handed driver liking to sit and drive at stardbord side. How many mates are you planning to trasnsport ocassionally or all the time ? for a large rib will need a trailer and a SUV too.
There are also on the market the Quick Response type ribs (2) have shorter widths, less deep V keels, weights less, have shorter diam tubes and needs less HP engines than seen on more pro ribs. Those are just 4.00 to 4.20 Mt.