Usually, when you cannot find an appropriate mini for a spelled item and need to make do with what little you have to accommodate a suggestion like this, where it is only a small part of the trade, it is best not to rely on sellers for them. In this case it matters very little, since it will likely be a few keys which means the low end will round to ~120 either way, but if sellers on them are absurdly high it is usually better to treat them as if they had no spells, rather than to arbitrarily add value to them through sellers.
As said, the difference here is negligible so this is fine, but it is something to keep in mind for future suggestions.
Romket launcher
https://backpack.tf/item/4678787641
Sale 1: bulk for beams pyromancer mask
Buyer: https://backpack.tf/profiles/76561198007624981#!/compare/1632009600/1632960000
Seller: https://backpack.tf/profiles/76561198258937500#!/compare/1632009600/1632096000
Sale 2: Hot Professional Killstreak Organ-ically Hellraised Scattergun (Minimal Wear) (61 from https://backpack.tf/suggestion/61658c2e5600fd333f716e03 ), Fragmented Photons Spiky (28.5 from https://backpack.tf/suggestion/61658f9c7376b75d8a396674) Viking, Cool Professional Killstreak Glacial Glazed Claidheamh Mòr (Factory New) (69.5 from https://backpack.tf/suggestion/616590881eae4a12c7587958) = 159 keys, rounding to 160k
Buyer: https://backpack.tf/profiles/76561198258937500#!/compare/1631923200/1632009600
Seller: https://backpack.tf/profiles/76561198288235862#!/compare/1630713600/1632009600
Sale 3: sold alongside a Festive spirit Conga for a phantasm jr pot, better used on the pot
Buyer: https://backpack.tf/profiles/76561198288235862#!/compare/1630022400/1630195200
Seller: https://backpack.tf/profiles/76561198322957656#!/compare/1630022400/1630195200
Sale 4: Untrace
Buyer: https://backpack.tf/profiles/76561198322957656#!/compare/1628553600/1629072000
Seller: https://backpack.tf/profiles/76561198092435879#!/compare/1628294400/1629072000
Sale 5: Sunbeams eyewear (75.5) + exo strange flame(1.5 from mini) + exo strange scatter(4 from… not really a mini) + exo pbombs strange sticky(14 from mini) + exo pbombs strange rocket(12 from mini) + schadenfreude (3) + haunted idiot box (4.2) + strange specks iron bomber (2.88) + strange specks rocket launcher (2.67) + killstreak botkiller mk2 wrench (0.3) = 120.05, rounding to 120k
Buyer: https://backpack.tf/profiles/76561198092435879#!/compare/1627516800/1627776000
Seller: https://backpack.tf/profiles/76561198065436693#!/compare/1627689600/1627776000
Sale 6: Untrace
Buyer: https://backpack.tf/profiles/76561198065436693#!/compare/1626393600/1627516800
Seller: https://backpack.tf/profiles/76561198057452720#!/compare/1627430400/1627516800
-----------------
Spell mini minis.
Strange exo flame: 1.5 keys https://backpack.tf/profiles/76561198332876881#!/compare/1632787200/1632873600
Strange exo scatter: can’t find any sales, taking classifieds lowend of 4 keys
https://backpack.tf/classifieds?item=Scattergun&quality=11&spell=Exorcism
Strange doublespelled sticky: 14 keys
https://backpack.tf/profiles/76561198218438367#!/compare/1632441600/1632528000
Strange doublespelled rocket: 12 keys
https://backpack.tf/profiles/76561198062457737#!/compare/1632268800/1632873600
---
Taking 120-160.
Usually, when you cannot find an appropriate mini for a spelled item and need to make do with what little you have to accommodate a suggestion like this, where it is only a small part of the trade, it is best not to rely on sellers for them. In this case it matters very little, since it will likely be a few keys which means the low end will round to ~120 either way, but if sellers on them are absurdly high it is usually better to treat them as if they had no spells, rather than to arbitrarily add value to them through sellers.
As said, the difference here is negligible so this is fine, but it is something to keep in mind for future suggestions.