diff --git a/contract/src/offer-up-proposal.js b/contract/src/offer-up-proposal.js
index 98ec425..df6cdf3 100644
--- a/contract/src/offer-up-proposal.js
+++ b/contract/src/offer-up-proposal.js
@@ -12,9 +12,6 @@ const BOARD_AUX = 'boardAux';
 
 const marshalData = makeMarshal(_val => Fail`data only`);
 
-const IST_UNIT = 1_000_000n;
-const CENT = IST_UNIT / 100n;
-
 /**
  * Make a storage node for auxilliary data for a value on the board.
  *
@@ -47,16 +44,19 @@ export const startOfferUpContract = async permittedPowers => {
     consume: { board, chainStorage, startUpgradable, zoe },
     brand: {
       consume: { IST: istBrandP },
+      // @ts-expect-error dynamic extension to promise space
       produce: { Item: produceItemBrand },
     },
     issuer: {
       consume: { IST: istIssuerP },
+      // @ts-expect-error dynamic extension to promise space
       produce: { Item: produceItemIssuer },
     },
     installation: {
       consume: { offerUp: offerUpInstallationP },
     },
     instance: {
+      // @ts-expect-error dynamic extension to promise space
       produce: { offerUp: produceInstance },
     },
   } = permittedPowers;
@@ -64,7 +64,7 @@ export const startOfferUpContract = async permittedPowers => {
   const istIssuer = await istIssuerP;
   const istBrand = await istBrandP;
 
-  const subscriptionTerms = {
+  const terms = {
     subscriptionPrice: AmountMath.make(istBrand, 500n),
   };
 
@@ -75,7 +75,7 @@ export const startOfferUpContract = async permittedPowers => {
     installation,
     issuerKeywordRecord: { Price: istIssuer },
     label: 'offerUp',
-    terms: subscriptionTerms,
+    terms,
   });
   console.log('CoreEval script: started contract', instance);
   const {
diff --git a/contract/src/offer-up.contract.js b/contract/src/offer-up.contract.js
index 3bcfecd..bf605fc 100644
--- a/contract/src/offer-up.contract.js
+++ b/contract/src/offer-up.contract.js
@@ -20,30 +20,11 @@
 // @ts-check
 
 import { Far } from '@endo/far';
-import { M, getCopyBagEntries } from '@endo/patterns';
 import { AmountMath, AssetKind } from '@agoric/ertp/src/amountMath.js';
-import { makeCopyBag } from '@endo/patterns';
-import { AmountShape } from '@agoric/ertp/src/typeGuards.js';
+import { makeCopyBag, M } from '@endo/patterns';
 import { atomicRearrange } from '@agoric/zoe/src/contractSupport/atomicTransfer.js';
-import { makeIssuerKit } from '@agoric/ertp';
 import '@agoric/zoe/exported.js';
 
-const { Fail, quote: q } = assert;
-
-// #region bag utilities
-/** @type { (xs: bigint[]) => bigint } */
-const sum = xs => xs.reduce((acc, x) => acc + x, 0n);
-
-/**
- * @param {import('@endo/patterns').CopyBag} bag
- * @returns {bigint[]}
- */
-const bagCounts = bag => {
-  const entries = getCopyBagEntries(bag);
-  return entries.map(([_k, ct]) => ct);
-};
-// #endregion
-
 /**
  * In addition to the standard `issuers` and `brands` terms,
  * this contract is parameterized by terms for price and,
@@ -75,8 +56,8 @@ const bagCounts = bag => {
 export const start = async zcf => {
   const {
     subscriptionPrice,
-    subscriptionPeriod = 'MONTHLY',
-    serviceToAvail = 'NETFLIX',
+    // subscriptionPeriod = 'MONTHLY',
+    // serviceToAvail = 'NETFLIX',
   } = zcf.getTerms();
 
   /**