Nice outfit... heavy powerful outboard for that Seapro... so take care lifting and opening the throttle!
This thread may be of interest... http://www.rib.net/forum/f50/how-far...els-71295.html
And this one... http://www.rib.net/forum/f50/best-wh...els-72495.html
And this... http://www.rib.net/forum/f50/trem-hd...tec-69303.html
where on Chipko's post #7 there are pictures of the only flip up type I'd use given your heavy OB... the Trem heavy duty set.
The important aspect of them... as well as the fact they have large tyres... is the lower tab that engages with a button on the transom and gives extra support reducing the leverage force which in all other types is quite significant when there is just one point of attachment at the top end of the leg.
This is assuming you want flip up? If... like me... you just want to launch with them then remove then the best type are Zodiac heavy duty made originally for Aerotec/Futura/Classic. They are an exceptionally strong leg with two attachment points and vey large tyres.
Note the guy lifting an old Evinrude 45hp... that was filmed in 2013... his back is probably shot by now.