Okay, here's my take on this Eorling wedding.
Dress - whatever Saeryn has available will have to do on short notice.
Something blue - both Saeryn and Eodwine have blue eyes ( I think )- that will have to suffice.
Cake - Eodwine wouldn't put Frodides through such a battle on short notice, so whatever Frodides chooses to do on her own initiative must suffice.
Rings - Eodwine has presented a ring to Saeryn already. What Saeryn wishes to do about this is up to her.
Grooms' ancestral sword - Never really thought about Eodwine's sword, but since he is of the Eorlingas (a knight), he would have one from his father's father's father's (etc.). So we can work with that.
New sword - Eodwine intends to speak of this with Saeryn and see what Harreld either has available or can do; it need not be on short notice - Harreld can smith a new sword that may be ready in a month's time or something.
Wedding trip - Um, we're there already.
Exchange of handgeld and bridegift (otherwise known as dowry and brideprice) - This has already been decided upon and will be announced at the wedding with appropriate oaths spoken.
Wedding Oath - this is something that can be worked out here - other writers are quite welcome to make suggestions.
keys - as there is no door nor lock - only tents as of yet - there cannot be keys, at least for the rite - but they will be taken care of later when house and home are built.
relations of the bride & groom - Degas will give Saeryn away. There is no mother of bride nor groom at Scarburg, but Modtryth could stand in for mother of the bride. We can forego parents for the eorl.
Any thoughts? Suggestions? Feel free to add your two cents (or more).