I cannot answer this very specific question because I do not know your frame. The beamer has 4 holes on the belly side at the distance of a square 125x130 mm, in the same rectangular direction as the beamer. This means that the projection is parallel to the narrow sides (lens is on the wide side), and the 125 mm are also in this direction. Very precise M4 screws fit into these holes.

Don't forget, the beamer has quite a chunk as a power supply: 85x181mm and 28 mm thick. The power connections are vis a vis the two narrow sides.

If it is useful to you, you are welcome to have a look at my beamer. I live in the Baden/Brugg region, and I agree if Digitec gives you my e-mail address or home address/phone number.

What do you want to use the projector for? It may be fine for TV and games, but for projecting true colour images, the settings of the device don't work. Take a look at the review of the projector at https://www.projektorcentral.com. The HU70LA(*) only manages 800 ANSI lumens at best, and if you select Expert Mode for real colours, it's barely 600 lumens. This is sufficient for a dark room. - For nice colours I project from my laptop, with HDMI cable and Spyder calibration. That works quite well.

(*) The HU70LA is the version offered in the USA, unfortunately not in Europe. This is the HU70LS, but with an additional digital TV tuner and the socket for TV cable connection. This is discreetly covered in the European version. Too bad!