Buying/Selling

I would like to ask if i can buy the following iteams:

BGS
ZGS
DFS
SS
and Robin set
for 401m (To my new acc) and maybe there are more items but i would add price.
401m is a SHOP PRICE for all those items (I checkd ITEM DB for price's)

and if i can sell him a yellow p hat for 600m?

If this is an alt of yours, it may have items for free, because when we trust you with staff powers were trusting you on all of your GSR accounts.

And item DB + shop are two diff things. Shop is stock price, item DB is street price

EDIT: Moved to market section

Kk then i'll tell him that im not allowd to sell something as i usually do