@itsureis
Hamsters are not the cheap and easy pet that pet stores market them as. They have highly complex and expensive needs and can cost thousands to keep a year.
In terms of an enclosure, a Syrian will need a minimum of 100*50cm on a single level. Deep & varied substrate, lots of hidey places, enrichment items, quality food, and a sand bath. A 28cm wheel minimum, but you may need a larger one. As a result I would recommend an enosjre that is at least 40cm high to get the required bedding depth (30cm) with room for enrichment items before the lid.
Hamster balls are dangerous and inhumane so I won't recommend using one.
In terms of bonding, this can take a long time.
Getting the enclosure right will help prevent stress and stereotypy behaviours (monkey barring, gnawing at the bars, etc), and will make it easier to handle your new companion. You can start slowly by putting your hand into the enclosure, popping tissues that gave your scent on into the enclosure daily, giving treats from your fingers, then palm, gradually your little one should start to trust you. Once they are trusting, you can stroke them whilst they are enjoying a snack and hopefully over time they will start to allow you to handle them.
It is worth remembering that not every hamster will ever become comfortable with being handled. Some will be "look and don't touch". We have four hamsters and two won't be handled at all.
I recommend checking out Instagram as there are loads of proper care accounts on there as well as "Proper Hamster Care" on Facebook. Victoria Rachael and Erin's Animals on Youtube are also great.
In terms of the pen you have, we have the same one. You just need to ensure you supervise at all times. Although free roam is also possible if you are able to block off places your little one may be able to get into/destroy. Check out NicoSyrianhamster on insta as she does lots of free roam videos with her two Syrians.